Exhibit 4.1

NEITHER THE ISSUANCE AND SALE OF THE SECURITIES REPRESENTED BY THIS NOTE NOR THE SECURITIES INTO WHICH THESE SECURITIES ARE CONVERTIBLE HAVE BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED, OR APPLICABLE STATE SECURITIES LAWS. THE SECURITIES MAY NOT BE OFFERED FOR SALE, SOLD, TRANSFERRED OR ASSIGNED (I) IN THE ABSENCE OF (A) AN EFFECTIVE REGISTRATION STATEMENT FOR THE SECURITIES UNDER THE SECURITIES ACT OF 1933, AS AMENDED, OR (B) AN OPINION OF COUNSEL (WHICH COUNSEL SHALL BE SELECTED BY THE HOLDER), IN A GENERALLY ACCEPTABLE FORM, THAT REGISTRATION IS NOT REQUIRED UNDER SAID ACT OR (II) UNLESS SOLD PURSUANT TO RULE 144 OR RULE 144A UNDER SAID ACT. NOTWITHSTANDING THE FOREGOING, THE SECURITIES MAY BE PLEDGED IN CONNECTION WITH A BONA FIDE MARGIN ACCOUNT OR OTHER LOAN OR FINANCING ARRANGEMENT SECURED BY THE SECURITIES.

Principal Amount: $137,500

Date: September 11, 2017

FORM OF SECURED CONVERTIBLE PROMISSORY NOTE

PositiveID Corp. , (hereinafter called the “Company”), hereby promises to pay to the order of GHS Investments, LLC , a Nevada Limited Liability Company, or its registered assigns (the “Holder”) the sum of $137,500 on the Maturity Date (as defined below), together with any interest as set forth herein, and to pay interest on the unpaid principal balance hereof at the rate of Ten percent (10%) (the “Interest Rate”) per annum from the date hereof (the “Issue Date”) until the same becomes due and payable, whether at maturity or upon acceleration or by prepayment or otherwise. This Note is being issued with a $12,500 original issuance discount (“OID”) to offset transaction, diligence and legal costs.

The principal sum (and corresponding interests) due to the Holder shall be prorated based on the consideration actually paid by the Holder in accordance with the Securities Purchase Agreement of same date. The Company is not required to repay any unfunded portion of this Note. The Maturity Date for each funded tranche shall be Twelve (12) months from the date on which the funds are received by the Company.

This Note may not be prepaid in whole or in part except as otherwise explicitly set forth herein.. Interest shall commence accruing on the date that the Note is fully paid and shall be computed on the basis of a 365-day year and the actual number of days elapsed. All payments due hereunder (to the extent not converted into common stock) shall be made in lawful money of the United States of America. Following any Event of Default, interest shall accrue at the lesser of Twenty Percent (20%) per annum or the maximum interest permitted by Law.

All payments shall be made at such address as the Holder shall hereafter give to the Company by written notice made in accordance with the provisions of this Note. Whenever any amount expressed to be due by the terms of this Note is due on any day which is not a business day, the same shall instead be due on the next succeeding day which is a business day and, in the case of any interest payment date which is not the date on which this Note is paid in full, the extension of the due date thereof shall not be taken into account for purposes of determining the amount of interest due on such date. As used in this Note, the term “business day” shall mean any day other than a Saturday, Sunday or a day on which commercial banks in the city of New York, New York are authorized or required by law or executive order to remain closed. Each capitalized term used herein, and not otherwise defined, shall have the meaning ascribed thereto in the supporting documents of same date (attached hereto).

This Note is free from all taxes, liens, claims and encumbrances with respect to the issue thereof and shall not be subject to preemptive rights or other similar rights of shareholders of the Company and will not impose personal liability upon the holder thereof.

The following terms shall apply to this Note:

ARTICLE I. CONVERSION RIGHTS

1.1 Conversion Right . The Holder shall have the right and at any time from the execution of this Note to convert all or any part of the outstanding and unpaid principal amount of this Note into fully paid and non- assessable shares of Common Stock, as such Common Stock exists on the Issue Date, or any shares of capital stock or other securities of the Company into which such Common Stock shall hereafter be changed or reclassified at the conversion price (the “Conversion Price”) determined as provided herein (a “Conversion”); provided , however , that in no event shall the Holder be entitled to convert any portion of this Note in excess of that portion of this Note upon conversion of which the sum of (1) the number of shares of Common Stock beneficially owned by the Holder and its affiliates (other than shares of Common Stock which may be deemed beneficially owned through the ownership of the unconverted portion of the Notes or the unexercised or unconverted portion of any other security of the Company subject to a limitation on conversion or exercise analogous to the limitations contained herein) and (2) the number of shares of Common Stock issuable upon the conversion of the portion of this Note with respect to which the determination of this proviso is being made, would result in beneficial ownership by the Holder and its affiliates of more than 4.99% of the outstanding shares of Common Stock. For purposes of the proviso to the immediately preceding sentence, beneficial ownership shall be determined in accordance with Section 13(d) of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), and Regulations 13D-G thereunder. The number of shares of Common Stock to be issued upon each conversion of this Note shall be determined by dividing the Conversion Amount (as defined below) by the applicable Conversion Price then in effect on the date specified in the notice of conversion, (the “Notice of Conversion”), delivered to the Company by the Holder in accordance with the Sections below; provided that the Notice of Conversion is submitted by facsimile or e-mail (or by other means resulting in, or reasonably expected to result in, notice) to the Company before 6:00 p.m., New York, New York time on such conversion date (the “Conversion Date”). Notwithstanding the foregoing, the term “4.99%” above shall be replaced with “9.99%” following any Event of Default if the Holder, in its sole discretion and in writing, elects to demand the replacement. If the term “4.99%” is replaced with “9.99%” pursuant to the preceding sentence, such increase to “9.99%” shall remain at 9.99% until decreased by the Holder in writing.

The number of shares of Common Stock to be issued upon each conversion of this Note shall be determined by dividing the Conversion Amount (as defined below) by the applicable Conversion Price then in effect on the date specified in the notice of conversion, (the “Notice of Conversion”), delivered to the Company by the Holder in accordance with the Sections below.

The term “Conversion Amount” means, with respect to any conversion of this Note, the sum of (1) the principal amount of this Note to be converted in such conversion plus (2) at the Company’s option, accrued and unpaid interest, if any, on such principal amount at the interest rates provided in this Note to the Conversion Date, plus (3) at the Company’s option, Default Interest, if any, on the amounts referred to in the immediately preceding clauses (1) and/or (2) plus (4) at the Holder’s option, any amounts owed to the Holder.

1.2 Conversion Price .

(a) Calculation of Conversion Price . Holder, at its discretion, shall have the right to convert this Note in its entirety or in part(s) into common stock of the Company valued at a thirty-seven and a half percent (37.5%) discount off of the lowest closing bid price for the Company’s common stock during the twenty (20) trading days immediately preceding a conversion date, as reported by Quotestream Media.

If at any time after the execution of this Note, the Company experiences a “DTC Chill,” the Conversion Price Discount shall be increased by five percent (5%). If at any time following the execution of this Note, the Company becomes ineligible to participate in the DTC’s “DWAC” system, the Conversion Price Discount will be increased by five percent (5%). Following any Event of Default, the Conversion Price discount shall be increased by five percent (5%).

1.3 Authorized Shares . The Company covenants that during the period the conversion right exists the Company will reserve from its authorized and unissued Common Stock a sufficient number of shares, free from preemptive rights, to provide for the issuance of Common Stock upon the full conversion of this Note. The Company is required at all times to have authorized and reserved three times the number of shares that is actually issuable upon full conversion of the Note (based on the Conversion Price of the Notes in effect from time to time)(the “Reserved Amount”). The Reserved Amount shall be increased from time to time in accordance with the Company’s obligations.

The Company represents that upon issuance, such shares will be duly and validly issued, fully paid and non-assessable. In addition, if the Company shall issue any securities or make any change to its capital structure which would change the number of shares of Common Stock into which the Notes shall be convertible at the then current Conversion Price, the Company shall at the same time make proper provision so that thereafter there shall be a sufficient number of shares of Common Stock authorized and reserved, free from preemptive rights, for conversion of the outstanding Notes.

The Company (i) acknowledges that it will irrevocably instruct its transfer agent to issue certificates for the Common Stock issuable upon conversion of this Note, and (ii) agrees that its issuance of this Note shall constitute full authority to its officers and agents who are charged with the duty of executing stock certificates to execute and issue the necessary certificates for shares of Common Stock in accordance with the terms and conditions of this Note.

If, at any time the Company does not maintain the Reserved Amount it will be considered an Event of Default as defined in this Note.

1.4 Method of Conversion .

(a) Mechanics of Conversion . This Note may be converted by the Holder in whole or in part at any time from time to time after the Issue Date, by (A) submitting to the Company a Notice of Conversion (by facsimile, e-mail or other reasonable means of communication dispatched on the Conversion Date prior to 6:00 p.m., New York, New York time).

(b) Surrender of Note Upon Conversion . Notwithstanding anything to the contrary set forth herein, upon conversion of this Note in accordance with the terms hereof, the Holder shall not be required to physically surrender this Note to the Company unless the entire unpaid principal amount of this Note is so converted. The Holder and the Company shall maintain records showing the principal amount so converted and the dates of such conversions or shall use such other method, reasonably satisfactory to the Holder and the Company, so as not to require physical surrender of this Note upon each such conversion. In the event of any dispute or discrepancy, such records of the Holder shall, prima facie, be controlling and determinative in the absence of manifest error. The Holder and any assignee, by acceptance of this Note, acknowledge and agree that, by reason of the provisions of this paragraph, following conversion of a portion of this Note, the unpaid and unconverted principal amount of this Note represented by this Note may be less than the amount stated on the face hereof.

(c) Payment of Taxes . The Company shall not be required to pay any tax which may be payable in respect of any transfer involved in the issue and delivery of shares of Common Stock or other securities or property on conversion of this Note in a name other than that of the Holder (or in street name), and the Company shall not be required to issue or deliver any such shares or other securities or property unless and until the person or persons (other than the Holder or the custodian in whose street name such shares are to be held for the Holder’s account) requesting the issuance thereof shall have paid to the Company the amount of any such tax or shall have established to the satisfaction of the Company that such tax has been paid.

(d) Delivery of Common Stock Upon Conversion . Upon receipt by the Company from the Holder of a facsimile transmission or e-mail (or other reasonable means of communication) of a Notice of Conversion meeting the requirements for conversion as provided in this Section, the Company shall issue and deliver or cause to be issued and delivered to or upon the order of the Holder certificates for the Common Stock issuable upon such conversion within three (3) business days after such receipt (the “Deadline”) (and, solely in the case of conversion of the entire unpaid principal amount hereof, surrender of this Note) in accordance with the terms hereof and the Purchase Agreement.

Within Five (5) business days of having received common stock pursuant to a Notice of Conversion and prior to having traded any shares from that specific conversion, Holder may elect to rescind the Notice of Conversion and return the shares, at Holder’s expense, to the Company’s Transfer Agent. In the event of such rescission, the principal amount outstanding under this Note shall be adjusted to include the Conversion Amount which was deducted from the Note as part of the rescinded Notice of Conversion.

(e) Obligation of Company to Deliver Common Stock . Upon receipt by the Company of a Notice of Conversion, the Holder shall be deemed to be the holder of record of the Common Stock issuable upon such conversion, the outstanding principal amount and the amount of accrued and unpaid interest on this Note shall be reduced to reflect such conversion, and, unless the Company defaults on its obligations under this Article I, all rights with respect to the portion of this Note being so converted shall forthwith terminate except the right to receive the Common Stock or other securities, cash or other assets, as herein provided, on such conversion. If the Holder shall have given a Notice of Conversion as provided herein, the Company’s obligation to issue and deliver the certificates for Common Stock shall be absolute and unconditional, irrespective of the absence of any action by the Holder to enforce the same, any waiver or consent with respect to any provision thereof, the recovery of any judgment against any person or any action to enforce the same, any failure or delay in the enforcement of any other obligation of the Company to the holder of record, or any setoff, counterclaim, recoupment, limitation or termination, or any breach or alleged breach by the Holder of any obligation to the Company, and irrespective of any other circumstance which might otherwise limit such obligation of the Company to the Holder in connection with such conversion. The Conversion Date specified in the Notice of Conversion shall be the Conversion Date so long as the Notice of Conversion is received by the Company before 6:00 p.m., New York, New York time, on such date.

(f) Delivery of Common Stock by Electronic Transfer . In lieu of delivering physical certificates representing the Common Stock issuable upon conversion, provided the Company is participating in the Depository Trust Company (“DTC”) Fast Automated Securities Transfer (“FAST”) program, upon request of the Holder and its compliance with the provisions contained in Section 1.1 and in this Section 1.4, the Company shall use its best efforts to cause its transfer agent to electronically transmit the Common Stock issuable upon conversion to the Holder by crediting the account of Holder’s Broker with DTC through its Deposit Withdrawal Agent Commission (“DWAC”) system.

(g) Failure to Deliver Common Stock Prior to Deadline . Without in any way limiting the Holder’s right to pursue other remedies, including actual damages and/or equitable relief, the parties agree that if delivery of the Common Stock issuable upon conversion of this Note is not delivered by the Deadline the Company shall pay to the Holder $2,000 per day in cash, for each day beyond the Deadline that the Company fails to deliver such Common Stock. Such cash amount shall be paid to Holder by the fifth day of the month following the month in which it has accrued or, at the option of the Holder (by written notice to the Company by the first day of the month following the month in which it has accrued), shall be added to the principal amount of this Note, in which event interest shall accrue thereon in accordance with the terms of this Note and such additional principal amount shall be convertible into Common Stock in accordance with the terms of this Note. The Company agrees that the right to convert is a valuable right to the Holder. The damages resulting from a failure, attempt to frustrate, interference with such conversion right are difficult if not impossible to qualify. Accordingly the parties acknowledge that the liquidated damages provision contained in this Section are justified. Any delay or failure of performance by the Company hereunder shall be excused if and to the extent caused by Force Majeure. For purposes of this agreement, Force Majeure shall mean a cause or event that is not reasonably foreseeable and not caused by the Company, including acts of God, fires, floods, explosions, riots wars, hurricanes, etc.

1.5 Concerning the Shares . The shares of Common Stock issuable upon conversion of this Note may not be sold or transferred unless (i) such shares are sold pursuant to an effective registration statement under the Act or (ii) the Company or its transfer agent shall have been furnished with an opinion of counsel (which opinion shall be in form, substance and scope customary for opinions of counsel in comparable transactions) to the effect that the shares to be sold or transferred may be sold or transferred pursuant to an exemption from such registration or (iii) such shares are sold or transferred pursuant to Rule 144 under the Act (or a successor rule) (“Rule 144”) or (iv) such shares are transferred to an “affiliate” (as defined in Rule 144) of the Company who agrees to sell or otherwise transfer the shares only in accordance with this Section 1.5 and who is an Accredited Investor. Except as otherwise provided herein (and subject to the removal provisions set forth below), until such time as the shares of Common Stock issuable upon conversion of this Note have been registered under the Act or otherwise may be sold pursuant to Rule 144 without any restriction as to the number of securities as of a particular date that can then be immediately sold, each certificate for shares of Common Stock issuable upon conversion of this Note that has not been so included in an effective registration statement or that has not been sold pursuant to an effective registration statement or an exemption that permits removal of the legend, shall bear a legend substantially in the following form, as appropriate:

“NEITHER THE ISSUANCE AND SALE OF THE SECURITIES REPRESENTED BY THIS CERTIFICATE NOR THE SECURITIES INTO WHICH THESE SECURITIES ARE EXERCISABLE HAVE BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED, OR APPLICABLE STATE SECURITIES LAWS. THE SECURITIES MAY NOT BE OFFERED FOR SALE, SOLD, TRANSFERRED OR ASSIGNED (I) IN THE ABSENCE OF (A) AN EFFECTIVE REGISTRATION STATEMENT FOR THE SECURITIES UNDER THE SECURITIES ACT OF 1933, AS AMENDED, OR (B) AN OPINION OF COUNSEL (WHICH COUNSEL SHALL BE SELECTED BY THE HOLDER), IN A GENERALLY ACCEPTABLE FORM, THAT REGISTRATION IS NOT REQUIRED UNDER SAID ACT OR (II) UNLESS SOLD PURSUANT TO RULE 144 OR RULE 144A UNDER SAID ACT. NOTWITHSTANDING THE FOREGOING, THE SECURITIES MAY BE PLEDGED IN CONNECTION WITH A BONA FIDE MARGIN ACCOUNT OR OTHER LOAN OR FINANCING ARRANGEMENT SECURED BY THE SECURITIES.”

The legend set forth above shall be removed and the Company shall issue to the Holder a new certificate therefore free of any transfer legend if (i) the Company or its transfer agent shall have received an opinion of counsel, in form, substance and scope customary for opinions of counsel in comparable transactions, to the effect that a public sale or transfer of such Common Stock may be made without registration under the Act, which opinion shall be accepted by the Company so that the sale or transfer is effected or (ii) in the case of the Common Stock issuable upon conversion of this Note, such security is registered for sale by the Holder under an effective registration statement filed under the Act or otherwise may be sold pursuant to Rule 144 without any restriction as to the number of securities as of a particular date that can then be immediately sold. In the event that the Company does not accept the opinion of counsel provided by the Buyer with respect to the transfer of Securities pursuant to an exemption from registration, such as Rule 144 or Regulation S, at the Deadline, it will be considered an Event of Default pursuant to this note.

1.6 Effect of Certain Events .

(a) Effect of Merger, Consolidation, Etc . At the option of the Holder, the sale, conveyance or disposition of all or substantially all of the assets of the Company, the effectuation by the Company of a transaction or series of related transactions in which more than 50% of the voting power of the Company is disposed of, or the consolidation, merger or other business combination of the Company with or into any other Person (as defined below) or Persons when the Company is not the survivor shall either: (i) be deemed to be an Event of Default (as defined in Article III) pursuant to which the Company shall be required to pay to the Holder upon the consummation of and as a condition to such transaction an amount equal to the Default Amount (as defined in Article III) or (ii) be treated pursuant to Section 1.6(b) hereof. “Person” shall mean any individual, corporation, limited liability company, partnership, association, trust or other entity or organization.

(b) Adjustment Due to Merger, Consolidation, Etc . If, at any time when this Note is issued and outstanding and prior to conversion of all of the Notes, there shall be any merger, consolidation, exchange of shares, recapitalization, reorganization, or other similar event, as a result of which shares of Common Stock of the Company shall be changed into the same or a different number of shares of another class or classes of stock or securities of the Company or another entity, or in case of any sale or conveyance of all or substantially all of the assets of the Company other than in connection with a plan of complete liquidation of the Company, then the Holder of this Note shall thereafter have the right to receive upon conversion of this Note, upon the basis and upon the terms and conditions specified herein and in lieu of the shares of Common Stock immediately theretofore issuable upon conversion, such stock, securities or assets which the Holder would have been entitled to receive in such transaction had this Note been converted in full immediately prior to such transaction (without regard to any limitations on conversion set forth herein), and in any such case appropriate provisions shall be made with respect to the rights and interests of the Holder of this Note to the end that the provisions hereof (including, without limitation, provisions for adjustment of the Conversion Price and of the number of shares issuable upon conversion of the Note) shall thereafter be applicable, as nearly as may be practicable in relation to any securities or assets thereafter deliverable upon the conversion hereof. The Company shall not affect any transaction described in this Section 1.6(b) unless (a) it first gives, to the extent practicable, thirty (30) days prior written notice (but in any event at least fifteen (15) days prior written notice) of the record date of the special meeting of shareholders to approve, or if there is no such record date, the consummation of, such merger, consolidation, exchange of shares, recapitalization, reorganization or other similar event or sale of assets (during which time the Holder shall be entitled to convert this Note) and (b) the resulting successor or acquiring entity (if not the Company) assumes by written instrument the obligations of this Section 1.6(b). The above provisions shall similarly apply to successive consolidations, mergers, sales, transfers or share exchanges.

(c) Adjustment Due to Distribution . If the Company shall declare or make any distribution of its assets (or rights to acquire its assets) to holders of Common Stock as a dividend, stock repurchase, by way of return of capital or otherwise (including any dividend or distribution to the Company’s shareholders in cash or shares (or rights to acquire shares) of capital stock of a subsidiary (i.e., a spin-off)) (a “Distribution”), then the Holder of this Note shall be entitled, upon any conversion of this Note after the date of record for determining shareholders entitled to such Distribution, to receive the amount of such assets which would have been payable to the Holder with respect to the shares of Common Stock issuable upon such conversion had such Holder been the holder of such shares of Common Stock on the record date for the determination of shareholders entitled to such Distribution.

(d) Adjustment Due to Dilutive Issuance . If, at any time when any Notes are issued and outstanding, the Borrower issues or sells, or in accordance with this Section 1.6(d) hereof is deemed to have issued or sold, any shares of Common Stock in connection with a financing transaction based on a variable price formula (the “Alternative Variable Price Formula”) that is more favorable to the investor in such financing transaction than the formula for calculating the Conversion Price in effect on the date of such issuance (or deemed issuance) of such shares of Common Stock (a “Dilutive Issuance”), then immediately upon the Dilutive Issuance, the formula for the Conversion Price will be adjusted to match the Alternative Variable Price Formula. If it is unclear whether the Alternative Variable Price Formula is better or worse, then Holder, in its sole discretion, may elect at the time of such issuance whether to switch to the Alternative Variable Price Formula or not.

(e) Purchase Rights . If, at any time when any Notes are issued and outstanding, the Company issues any convertible securities or rights to purchase stock, warrants, securities or other property (the “Purchase Rights”) pro rata to the record holders of any class of Common Stock, then the Holder of this Note will be entitled to acquire, upon the terms applicable to such Purchase Rights, the aggregate Purchase Rights which such Holder could have acquired if such Holder had held the number of shares of Common Stock acquirable upon complete conversion of this Note (without regard to any limitations on conversion contained herein) immediately before the date on which a record is taken for the grant, issuance or sale of such Purchase Rights or, if no such record is taken, the date as of which the record holders of Common Stock are to be determined for the grant, issue or sale of such Purchase Rights.

(f) Notice of Adjustments . Upon the occurrence of each adjustment or readjustment of the Conversion Price as a result of the events described in this Section 1.6, the Company, at its expense, shall promptly compute such adjustment or readjustment and prepare and furnish to the Holder of a certificate setting forth such adjustment or readjustment and showing in detail the facts upon which such adjustment or readjustment is based. The Company shall, upon the written request at any time of the Holder, furnish to such Holder a like certificate setting forth (i) such adjustment or readjustment, (ii) the Conversion Price at the time in effect and (iii) the number of shares of Common Stock and the amount, if any, of other securities or property which at the time would be received upon conversion of the Note.

1.7 Security As Security for the Company’s obligations contained herein and in all Notes issued by the Company to the Holder, the Holder shall be granted an unconditional secured interest in and to, any and all property of the Company and its subsidiaries, of any kind or description, tangible or intangible, whether now existing or hereafter arising or acquired until the balance of all Notes has been reduced to $0. However such security interest shall be behind the security interests previously in place with three other creditors as set forth in the Security Agreement dated August 11, 2016 (“Security Agreement”.

1.8 Status as Shareholder . Upon submission of a Notice of Conversion by a Holder, (i) the shares covered thereby (other than the shares, if any, which cannot be issued because their issuance would exceed such Holder’s allocated portion of the Reserved Amount or Maximum Share Amount) shall be deemed converted into shares of Common Stock and (ii) the Holder’s rights as a Holder of such converted portion of this Note shall cease and terminate, excepting only the right to receive certificates for such shares of Common Stock and to any remedies provided herein or otherwise available at law or in equity to such Holder because of a failure by the Company to comply with the terms of this Note. Notwithstanding the foregoing, if a Holder has not received certificates for all shares of Common Stock prior to the tenth (10th) business day after the expiration of the Deadline with respect to a conversion of any portion of this Note for any reason, then (unless the Holder otherwise elects to retain its status as a holder of Common Stock by so notifying the Company) the Holder shall regain the rights of a Holder of this Note with respect to such unconverted portions of this Note and the Company shall, as soon as practicable, return such unconverted Note to the Holder or, if the Note has not been surrendered, adjust its records to reflect that such portion of this Note has not been converted. In all cases, the Holder shall retain all of its rights and remedies (including, without limitation, (i) the right to receive Conversion Default Payments pursuant to Section 1.3 to the extent required thereby for such Conversion Default and any subsequent Conversion Default and (ii) the right to have the Conversion Price with respect to subsequent conversions determined in accordance with Section 1.3) for the Company’s failure to convert this Note.

1.9 Prepayment . Company may prepay this Note, in accordance with the following schedule: If within 60 calendar days from the execution of this Note, 120% of all outstanding principal and interest due on each outstanding Note in one payment; After 60 calendar days from the execution of the note and within 120 days from execution, 127.5% of all outstanding principal and interest due on each outstanding Note in one payment. Between 121 and 180 days from the date of execution, the Note may be prepaid for 135% of all outstanding amounts due on each outstanding Note in one payment. After 180 days from the date of execution the Note shall only be prepaid upon written approval from the Holder.

ARTICLE II. CERTAIN COVENANTS

2.1 Distributions on Capital Stock . So long as the Company shall have any obligation under this Note, the Company shall not without the Holder’s written consent (a) pay, declare or set apart for such payment, any dividend or other distribution (whether in cash, property or other securities) on shares of capital stock other than dividends on shares of Common Stock solely in the form of additional shares of Common Stock or (b) directly or indirectly or through any subsidiary make any other payment or distribution in respect of its capital stock except for distributions pursuant to any shareholders’ rights plan which is approved by a majority of the Company’s disinterested directors.

2.2 Restriction on Stock Repurchases . So long as the Company shall have any obligation under this Note, the Company shall not without the Holder’s written consent redeem, repurchase or otherwise acquire (whether for cash or in exchange for property or other securities or otherwise) in any one transaction or series of related transactions any shares of capital stock of the Company or any warrants, rights or options to purchase or acquire any such shares.

2.3 Borrowings . So long as the Company shall have any obligation under this Note, the Company shall not, without providing the Holder with the right of first refusal, create, incur, assume guarantee, endorse, contingently agree to purchase or otherwise become liable upon the obligation of any person, firm, partnership, joint venture or corporation, except by the endorsement of negotiable instruments for deposit or collection, or suffer to exist any liability for borrowed money, except (a) borrowings in existence or committed on the date hereof and of which the Issuer has informed Holder in writing prior to the date hereof, (b) indebtedness to trade creditors or financial institutions incurred in the ordinary course of business or (c) borrowings, the proceeds of which shall be used to repay this Note. Holder shall have 3 business days from receipt of the terms of any potential borrowings to confirm if they want to provide such financing on similar terms.

2.4 Sale of Assets . So long as the Company shall have any obligation under this Note, the Company shall not, without the Holder’s written consent, sell, lease or otherwise dispose of any significant portion of its assets outside the ordinary course of business. Any consent to the disposition of any assets may be conditioned on a specified use of the proceeds of disposition.

2.5 Advances and Loans . So long as the Company shall have any obligation under this Note, the Company shall not, without the Holder’s written consent, lend money, give credit or make advances to any person, firm, joint venture or corporation, including, without limitation, officers, directors, employees, subsidiaries and affiliates of the Company, except loans, credits or advances (a) in existence or committed on the date hereof and which the Company has informed Holder in writing prior to the date hereof, (b) made in the ordinary course of business or (c) not in excess of $50,000.

ARTICLE III. EVENTS OF DEFAULT

If any of the following events of default (each, an “Event of Default”) shall occur:

3.1 Failure to Pay Principal or Interest . The Company fails to pay the principal hereof or interest thereon when due on this Note, whether at maturity, upon acceleration or otherwise.

3.2 Conversion and the Shares . The Company fails to issue shares of Common Stock to the Holder (or announces or threatens in writing that it will not honor its obligation to do so) upon exercise by the Holder of the conversion rights of the Holder in accordance with the terms of this Note, fails to transfer or cause its transfer agent to transfer (issue) (electronically or in certificated form) any certificate for shares of Common Stock issued to the Holder upon conversion of or otherwise pursuant to this Note as and when required by this Note, the Company directs its transfer agent not to transfer or delays, impairs, and/or hinders its transfer agent in transferring (or issuing) (electronically or in certificated form) any certificate for shares of Common Stock to be issued to the Holder upon conversion of or otherwise pursuant to this Note as and when required by this Note, or fails to remove (or directs its transfer agent not to remove or impairs, delays, and/or hinders its transfer agent from removing) any restrictive legend (or to withdraw any stop transfer instructions in respect thereof) on any certificate for any shares of Common Stock issued to the Holder upon conversion of or otherwise pursuant to this Note as and when required by this Note (or makes any written announcement, statement or threat that it does not intend to honor the obligations described in this paragraph) and any such failure shall continue uncured (or any written announcement, statement or threat not to honor its obligations shall not be rescinded in writing) for three (3) business days after the Holder shall have delivered a Notice of Conversion. It is an obligation of the Company to remain current in its obligations to its transfer agent. It shall be an event of default of this Note, if a conversion of this Note is delayed, hindered or frustrated due to a balance owed by the Company to its transfer agent. If at the option of the Holder, the Holder advances any funds to the Company’s transfer agent in order to process a conversion, such advanced funds shall be paid by the Company to the Holder within forty eight (48) hours of a demand from the Holder.

3.3 Breach of Covenants . The Company breaches any covenant or other term or condition contained in this Note and any collateral documents including but not limited to the Purchase Agreement.

3.4 Breach of Representations and Warranties . Any representation or warranty of the Company made herein or in any agreement, statement or certificate given in writing pursuant hereto or in connection herewith (including, without limitation, the Purchase Agreement), shall be false or misleading in any material respect when made and the breach of which has (or with the passage of time will have) a material adverse effect on the rights of the Holder with respect to this Note or the Purchase Agreement.

3.5 Receiver or Trustee . The Company or any subsidiary of the Company shall make an assignment for the benefit of creditors, or apply for or consent to the appointment of a receiver or trustee for it or for a substantial part of its property or business, or such a receiver or trustee shall otherwise be appointed.

3.6 Judgments . Any money judgment, writ or similar process shall be entered or filed against the Company or any subsidiary of the Company or any of its property or other assets for more than $50,000, and shall remain unvacated, unbonded or unstayed for a period of twenty (20) days unless otherwise consented to by the Holder, which consent will not be unreasonably withheld.

3.7 Bankruptcy . Bankruptcy, insolvency, reorganization or liquidation proceedings or other proceedings, voluntary or involuntary, for relief under any bankruptcy law or any law for the relief of debtors shall be instituted by or against the Company or any subsidiary of the Company.

3.8 Delisting of Common Stock . The Company shall fail to maintain, in good standing, the listing of the Common Stock on the OTCQB or an equivalent replacement exchange, the Nasdaq National Market, the Nasdaq SmallCap Market or the New York Stock Exchange.

3.9 Failure to Comply with the Exchange Act . The Company shall fail to comply, in a timely manner, with the reporting requirements of the Exchange Act; and/or the Company shall cease to be subject to the reporting requirements of the Exchange Act.

3.10 Liquidation . Any dissolution, liquidation, or winding up of Company or any substantial portion of its business.

3.11 Cessation of Operations . Any cessation of operations by Company or Company admits it is otherwise generally unable to pay its debts as such debts become due, provided, however, that any disclosure of the Company’s ability to continue as a “going concern” shall not be an admission that the Company cannot pay its debts as they become due.

3.12 Maintenance of Assets . The failure by Company to maintain any material intellectual property rights, personal, real property or other assets which are necessary to conduct its business (whether now or in the future).

3.13 Financial Statement Restatement . The restatement of any financial statements filed by the Company with the SEC for any date or period from two years prior to the Issue Date of this Note and until this Note is no longer outstanding, if the result of such restatement would, by comparison to the original financial statement, have constituted a material adverse effect on the rights of the Holder with respect to this Note or supporting documents.

3.14 Reverse Splits . The Company effectuates a reverse split of itsCommon Stock without at least twenty (20) days prior written notice to the Holder.

3.15 Replacement of Transfer Agent . In the event that the Company proposes to replace its transfer agent, the Company fails to provide, prior to the effective date of such replacement, a fully executed Irrevocable Transfer Agent Instructions in a form as initially delivered pursuant to the Purchase Agreement (including but not limited to the provision to irrevocably reserve shares of Common Stock in the Reserved Amount) signed by the successor transfer agent to Company and the Company.

3.16 Cross-Default . Notwithstanding anything to the contrary contained in this Note or the other related or companion documents, a breach or default by the Company of any covenant or other term or condition contained in any of the Other Agreements, after the passage of all applicable notice and cure or grace periods, shall, at the option of the Holder, be considered a default under this Note and the Other Agreements, in which event the Holder shall be entitled (but in no event required) to apply all rights and remedies of the Holder under the terms of this Note and the Other Agreements by reason of a default under said Other Agreement or hereunder. “Other Agreements” means, collectively, all agreements and instruments between, among or by: (1) the Company, and, or for the benefit of, (2) the Holder and any affiliate of the Holder, including, without limitation, promissory notes; provided, however, the term “Other Agreements” shall not include the related or companion documents to this Note. Each of the loan transactions will be cross-defaulted with each other loan transaction and with all other existing and future debt of Company.

Upon the occurrence and during the continuation of any Event of Default specified in Section 3.1 (solely with respect to failure to pay the principal hereof or interest thereon when due at the Maturity Date), the Note shall become immediately due and payable and the Company shall pay to the Holder, in full satisfaction of its obligations hereunder, an amount equal to the Default Sum (as defined herein). UPON THE OCCURRENCE AND DURING THE CONTINUATION OF ANY EVENT OF DEFAULT SPECIFIED IN SECTION 3.2, THE NOTE SHALL BECOME IMMEDIATELY DUE AND PAYABLE AND THE COMPANY SHALL PAY TO THE HOLDER, IN FULL SATISFACTION OF ITS OBLIGATIONS HEREUNDER, AN AMOUNT EQUAL TO: (Y) THE DEFAULT SUM (AS DEFINED HEREIN); MULTIPLIED BY (Z) TWO (2). Upon the occurrence and during the continuation of any Event of Default specified in Sections 3.1 (solely with respect to failure to pay the principal hereof or interest thereon when due on this Note upon a Trading Market Prepayment Event pursuant to Section 1.7 or upon acceleration), 3.3, 3.4, 3.6, 3.8, 3.9, 3.11, 3.12, 3.13, 3.14, and/or 3. 15 exercisable through the delivery of written notice to the Company by such Holders (the “Default Notice”), and upon the occurrence of an Event of Default specified the remaining sections of Articles III (other than failure to pay the principal hereof or interest thereon at the Maturity Date specified in Section 3,1 hereof), the Note shall become immediately due and payable and the Company shall pay to the Holder, in full satisfaction of its obligations hereunder, an amount equal to the greater of (i) 150% times the sum of (w) the then outstanding principal amount of this Note plus (x) accrued and unpaid interest on the unpaid principal amount of this Note to the date of payment (the “Mandatory Prepayment Date”) plus (y) Default Interest, if any, on the amounts referred to in clauses (w) and/or (x) plus (z) any amounts owed to the Holder pursuant to Sections 1.3 and 1.4(g) hereof (the then outstanding principal amount of this Note to the date of payment plus the amounts referred to in clauses (x), (y) and (z) shall collectively be known as the “Default Sum”) or (ii) the “parity value” of the Default Sum to be prepaid, where parity value means (a) the highest number of shares of Common Stock issuable upon conversion of or otherwise pursuant to such Default Sum in accordance with Article I, treating the Trading Day immediately preceding the Mandatory Prepayment Date as the “Conversion Date” for purposes of determining the lowest applicable Conversion Price, unless the Default Event arises as a result of a breach in respect of a specific Conversion Date in which case such Conversion Date shall be the Conversion Date), multiplied by (b) the highest Closing Price for the Common Stock during the period beginning on the date of first occurrence of the Event of Default and ending one day prior to the Mandatory Prepayment Date (the “Default Amount”) and all other amounts payable hereunder shall immediately become due and payable, all without demand, presentment or notice, all of which hereby are expressly waived, together with all costs, including, without limitation, legal fees and expenses, of collection, and the Holder shall be entitled to exercise all other rights and remedies available at law or in equity.

If the Company fails to pay the Default Amount within five (5) business days of written notice that such amount is due and payable, then the Holder shall have the right at any time, so long as the Company remains in default (and so long and to the extent that there are sufficient authorized shares), to require the Company, upon written notice, to immediately issue, in lieu of the Default Amount, the number of shares of Common Stock of the Company equal to the Default Amount divided by the Conversion Price then in effect.

ARTICLE IV. MISCELLANEOUS

4.1 Failure or Indulgence Not Waiver . No failure or delay on the part of the Holder in the exercise of any power, right or privilege hereunder shall operate as a waiver thereof, nor shall any single or partial exercise of any such power, right or privilege preclude other or further exercise thereof or of any other right, power or privileges. All rights and remedies existing hereunder are cumulative to, and not exclusive of, any rights or remedies otherwise available.

4.2 Notices . All notices, demands, requests, consents, approvals, and other communications required or permitted hereunder shall be in writing and, unless otherwise specified herein, shall be (i) personally served, (ii) deposited in the mail, registered or certified, return receipt requested, postage prepaid, (iii) delivered by reputable air courier service with charges prepaid, or (iv) transmitted by hand delivery, telegram, or facsimile, addressed as set forth below or to such other address as such party shall have specified most recently by written notice. Any notice or other communication required or permitted to be given hereunder shall be deemed effective (a) upon hand delivery or delivery by facsimile, with accurate confirmation generated by the transmitting facsimile machine, at the address or number designated below (if delivered on a business day during normal business hours where such notice is to be received), or the first business day following such delivery (if delivered other than on a business day during normal business hours where such notice is to be received) or (b) on the second business day following the date of mailing by express courier service, fully prepaid, addressed to such address, or upon actual receipt of such mailing, whichever shall first occur. The addresses for such communications shall be:

If to the Company, to:

____________

____________

____________

If to the Holder:

GHS Investments, LLC.

420 Jericho Turnpike

Suite 207

Jericho, NY 11753

4.3 Amendments . This Note and any provision hereof may only be amended by an instrument in writing signed by the Company and the Holder. The term “Note” and all reference thereto, as used throughout this instrument, shall mean this instrument (and the other Notes issued pursuant to the Purchase Agreement) as originally executed, or if later amended or supplemented, then as so amended or supplemented.

4.4 Assignability . This Note shall be binding upon the Company and its successors and assigns, and shall inure to be the benefit of the Holder and its successors and assigns. Notwithstanding anything in this Note to the contrary, this Note may be pledged as collateral in connection with a bona fide margin account or other lending arrangement.

4.5 Cost of Collection . If default is made in the payment of this Note, the Company shall pay the Holder hereof costs of collection, including reasonable attorneys’ fees.

4.6 Governing Law . This Note shall be governed by and construed in accordance with the laws of the State of Nevada without regard to principles of conflicts of laws. Any action brought by either party against the other concerning the transactions contemplated by this Note shall be brought only in the state or federal courts located in the County, City and State of New York. The parties to this Note hereby irrevocably waive any objection to jurisdiction and venue of any action instituted hereunder and shall not assert any defense based on lack of jurisdiction or venue or based upon forum non conveniens . The Company and Holder waive trial by jury. The prevailing party shall be entitled to recover from the other party its reasonable attorney’s fees and costs. In the event that any provision of this Note or any other agreement delivered in connection herewith is invalid or unenforceable under any applicable statute or rule of law, then such provision shall be deemed inoperative to the extent that it may conflict therewith and shall be deemed modified to conform with such statute or rule of law. Any such provision which may prove invalid or unenforceable under any law shall not affect the validity or enforceability of any other provision of any agreement. Each party hereby irrevocably waives personal service of process and consents to process being served in any suit, action or proceeding in connection with this Agreement or any other Transaction Document by mailing a copy thereof via registered or certified mail or overnight delivery (with evidence of delivery) to such party at the address in effect for notices to it under this Agreement and agrees that such service shall constitute good and sufficient service of process and notice thereof. Nothing contained herein shall be deemed to limit in any way any right to serve process in any other manner permitted by law.

4.7 Certain Amounts . Whenever pursuant to this Note the Company is required to pay an amount in excess of the outstanding principal amount (or the portion thereof required to be paid at that time) plus accrued and unpaid interest plus Default Interest on such interest, the Company and the Holder agree that the actual damages to the Holder from the receipt of cash payment on this Note may be difficult to determine and the amount to be so paid by the Company represents stipulated damages and not a penalty and is intended to compensate the Holder in part for loss of the opportunity to convert this Note and to earn a return from the sale of shares of Common Stock acquired upon conversion of this Note at a price in excess of the price paid for such shares pursuant to this Note. The Company and the Holder hereby agree that such amount of stipulated damages is not plainly disproportionate to the possible loss to the Holder from the receipt of a cash payment without the opportunity to convert this Note into shares of Common Stock.

4.8 Purchase Agreement . By its acceptance of this Note, each party agrees to be bound by the applicable terms of the Securities Purchase Agreement, the Security Agreement and supporting documents.

4.9 Notice of Corporate Events . Except as otherwise provided below, the Holder of this Note shall have no rights as a Holder of Common Stock unless and only to the extent that it converts this Note into Common Stock. The Company shall provide the Holder with prior notification of any meeting of the Company’s shareholders (and copies of proxy materials and other information sent to shareholders). In the event of any taking by the Company of a record of its shareholders for the purpose of determining shareholders who are entitled to receive payment of any dividend or other distribution, any right to subscribe for, purchase or otherwise acquire (including by way of merger, consolidation, reclassification or recapitalization) any share of any class or any other securities or property, or to receive any other right, or for the purpose of determining shareholders who are entitled to vote in connection with any proposed sale, lease or conveyance of all or substantially all of the assets of the Company or any proposed liquidation, dissolution or winding up of the Company, the Company shall mail a notice to the Holder, at least twenty (20) days prior to the record date specified therein (or thirty (30) days prior to the consummation of the transaction or event, whichever is earlier), of the date on which any such record is to be taken for the purpose of such dividend, distribution, right or other event, and a brief statement regarding the amount and character of such dividend, distribution, right or other event to the extent known at such time. The Company shall make a public announcement of any event requiring notification to the Holder hereunder substantially simultaneously with the notification to the Holder in accordance with the terms of this Section 4.9.

4.10 Remedies . The Company acknowledges that a breach by it of its obligations hereunder will cause irreparable harm to the Holder, by vitiating the intent and purpose of the transaction contemplated hereby. Accordingly, the Company acknowledges that the remedy at law for a breach of its obligations under this Note will be inadequate and agrees, in the event of a breach or threatened breach by the Company of the provisions of this Note, that the Holder shall be entitled, in addition to all other available remedies at law or in equity, and in addition to the penalties assessable herein, to an injunction or injunctions restraining, preventing or curing any breach of this Note and to enforce specifically the terms and provisions thereof, without the necessity of showing economic loss and without any bond or other security being required.

IN WITNESS WHEREOF, Company has caused this Note to be signed in its name by its duly authorized officer:

Exhibit 4.2

THIS NOTE AND THE COMMON STOCK ISSUABLE UPON CONVERSION OF THIS NOTE HAVE NOT BEEN AND WILL NOT BE REGISTERED WITH THE UNITED STATES SECURITIES AND EXCHANGE COMMISSION OR THE SECURITIES COMMISSION OF ANY STATE PURSUANT TO AN EXEMPTION FROM REGISTRATION PROVIDED UNDER THE SECURITIES ACT OF 1933, AS AMENDED, AND THE RULES AND REGULATIONS PROMULGATED THEREUNDER (THE “1933 ACT”)

US $52,000.00

FORM OF POSITIVEID CORP.

12% CONVERTIBLE REDEEMABLE NOTE

DUE SEPTEMBER 12, 2018

FOR VALUE RECEIVED, PositiveID Corp. (the “Company”) promises to pay to the order of UNION CAPITAL, LLC and its authorized successors and Permitted Assigns, defined below, (“ Holder ”), the aggregate principal face amount of Fifty Two Thousand Dollars exactly (U.S. $52,000.00) on September 12, 2018 (“ Maturity Date ”) and to pay interest on the principal amount outstanding hereunder at the rate of 12% per annum commencing on September 12, 2017. The interest will be paid to the Holder in whose name this Note is registered on the records of the Company regarding registration and transfers of this Note. This Note contains a 4% OID such that the purchase price is $50,000.00. The principal of, and interest on, this Note are payable at 525 Norton Parkway, New Haven, CT 06511, initially, and if changed, last appearing on the records of the Company as designated in writing by the Holder hereof from time to time. The Company will pay each interest payment and the outstanding principal due upon this Note before or on the Maturity Date, less any amounts required by law to be deducted or withheld, to the Holder of this Note by check or wire transfer addressed to such Holder at the last address appearing on the records of the Company. The forwarding of such check or wire transfer shall constitute a payment of outstanding principal hereunder and shall satisfy and discharge the liability for principal on this Note to the extent of the sum represented by such check or wire transfer. Interest shall be payable in Common Stock (as defined below) pursuant to paragraph 4(b) herein. Permitted Assigns means any Holder assignment, transfer or sale of all or a portion of this Note accompanied by an Opinion of Counsel as provided for in Section 2(f) of the Securities Purchase Agreement.

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This Note is subject to the following additional provisions:

1. This Note is exchangeable for an equal aggregate principal amount of Notes of different authorized denominations, as requested by the Holder surrendering the same. No service charge will be made for such registration or transfer or exchange, except that Holder shall pay any tax or other governmental charges payable in connection therewith. To the extent that Holder subsequently transfers, assigns, sells or exchanges any of the multiple lesser denomination notes, Holder acknowledges that it will provide the Company with Opinions of Counsel as provided for in Section 2(f) of the Securities Purchase Agreement.

2. The Company shall be entitled to withhold from all payments any amounts required to be withheld under applicable laws.

3. This Note may be transferred or exchanged only in compliance with the Securities Act of 1933, as amended (“ Act ”), applicable state securities laws and Sections 2(f) and 5(f) of the Securities Purchase Agreement. Any attempted transfer to a non-qualifying party shall be treated by the Company as void. Prior to due presentment for transfer of this Note, the Company and any agent of the Company may treat the person in whose name this Note is duly registered on the Company’s records as the owner hereof for all other purposes, whether or not this Note be overdue, and neither the Company nor any such agent shall be affected or bound by notice to the contrary. Any Holder of this Note electing to exercise the right of conversion set forth in Section 4(a) hereof, in addition to the requirements set forth in Section 4(a), and any prequalified prospective transferee of this Note, also is required to give the Company written confirmation that this Note is being converted (“ Notice of Conversion ”) in the form annexed hereto as Exhibit A . The date of receipt (including receipt by telecopy) of such Notice of Conversion shall be the Conversion Date. All notices of conversion will be accompanied by an Opinion of Counsel.

4. (a) The Holder of this Note is entitled, at its option, at any time, to convert all or any amount of the principal face amount of this Note then outstanding into shares of the Company’s common stock (the “ Common Stock ”) at a price (“ Conversion Price ”) for each share of Common Stock equal to 62.5% of the lowest closing bid of the Common Stock as reported on the National Quotations Bureau OTC Markets exchange which the Company’s shares are traded or any exchange upon which the Common Stock may be traded in the future (“ Exchange ”), for the fifteen prior trading days including the day upon which a Notice of Conversion is received by the Company (provided such Notice of Conversion is delivered together with an Opinion of Counsel, by fax or other electronic method of communication to the Company after 4 P.M. Eastern Standard or Daylight Savings Time if the Holder wishes to include the same day closing price). If the shares have not been delivered within 3 business days, the Notice of Conversion may be rescinded. Such conversion shall be effectuated by the Company delivering the shares of Common Stock to the Holder within 3 business days of receipt by the Company of the Notice of Conversion. Accrued, but unpaid interest shall be subject to conversion. No fractional shares or scrip representing fractions of shares will be issued on conversion, but the number of shares issuable shall be rounded to the nearest whole share. To the extent the Conversion Price of the Company’s Common Stock closes below the par value per share, the Company will take all steps necessary to solicit the consent of the stockholders to reduce the par value to the lowest value possible under law. The Company agrees to honor all conversions submitted pending this increase. In the event the Company experiences a DTC “Chill” on its shares, the conversion price shall be decreased to 52.5% instead of 62.5% while that “Chill” is in effect. If the Company fails to maintain the share reserve at the 4x discount of the note 60 days after the issuance of the note, the conversion discount shall be increased by 10%. In no event shall the Holder be allowed to effect a conversion if such conversion, along with all other shares of Company Common Stock beneficially owned by the Holder and its affiliates would exceed 9.9% of the outstanding shares of the Common Stock of the Company. The conversion discount and lookback period will be adjusted downward (i.e. for the benefit of the Holder) if the Company offers a more favorable conversion discount (whether via interest, rate OID or otherwise) or lookback period to another party while this note is in effect and the Holder will also get the benefit of any other term (for an example, a higher prepay) granted to any third party while this Note is in effect.

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(b) Interest on any unpaid principal balance of this Note shall be paid at the rate of 12% per annum. Interest shall be paid by the Company in Common Stock (“Interest Shares”). Holder may, at any time, send in a Notice of Conversion to the Company for Interest Shares based on the formula provided in Section 4(a) above. The dollar amount converted into Interest Shares shall be all or a portion of the accrued interest calculated on the unpaid principal balance of this Note to the date of such notice. The 12% interest is guaranteed, and is such in no event shall the interest be less than 12% of the $52,000 principal amount and this amount may be added the principal amount of this Note for purposes of conversions and repayments.

(c) The Notes may be prepaid during the first 90 days with a prepayment penalty equal to 120% of the face amount and any accrued interest and in the following 90 days with a prepayment penalty equal to 135% of the face amount and any accrued interest. This Note may not be prepaid after the 180 ^th day. Such redemption must be closed and funded within 3 days of giving notice of redemption of the right to redeem shall be null and void.

(d) Upon (i) a transfer of all or substantially all of the assets of the Company to any person in a single transaction or series of related transactions, (ii) a reclassification, capital reorganization (excluding an increase in authorized capital) or other change or exchange of outstanding shares of the Common Stock, other than a forward or reverse stock split or stock dividend, or (iii) any consolidation or merger of the Company with or into another person or entity in which the Company is not the surviving entity (other than a merger which is effected solely to change the jurisdiction of incorporation of the Company and results in a reclassification, conversion or exchange of outstanding shares of Common Stock solely into shares of Common Stock) (each of items (i), (ii) and (iii) being referred to as a “Sale Event”), then, in each case, the Company shall, upon request of the Holder, redeem this Note in cash for 150% of the principal amount, plus accrued but unpaid interest through the date of redemption, or at the election of the Holder, such Holder may convert the unpaid principal amount of this Note (together with the amount of accrued but unpaid interest) into shares of Common Stock immediately prior to such Sale Event at the Conversion Price.

(e) In case of any Sale Event (not to include a sale of all or substantially all of the Company’s assets) in connection with which this Note is not redeemed or converted, the Company shall cause effective provision to be made so that the Holder of this Note shall have the right thereafter, by converting this Note, to purchase or convert this Note into the kind and number of shares of stock or other securities or property (including cash) receivable upon such reclassification, capital reorganization or other change, consolidation or merger by a holder of the number of shares of Common Stock that could have been purchased upon exercise of the Note and at the same Conversion Price, as defined in this Note, immediately prior to such Sale Event. The foregoing provisions shall similarly apply to successive Sale Events. If the consideration received by the holders of Common Stock is other than cash, the value shall be as determined by the Board of Directors of the Company or successor person or entity acting in good faith.

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5. No provision of this Note shall alter or impair the obligation of the Company, which is absolute and unconditional, to pay the principal of, and interest on, this Note at the time, place, and rate, and in the form, herein prescribed.

6. The Company hereby expressly waives demand and presentment for payment, notice of non-payment, protest, notice of protest, notice of dishonor, notice of acceleration or intent to accelerate, and diligence in taking any action to collect amounts called for hereunder and shall be directly and primarily liable for the payment of all sums owing and to be owing hereto.

7. The Company agrees to pay all costs and expenses, including reasonable attorneys’ fees and expenses, which may be incurred by the Holder in collecting any amount due under this Note.

8. If one or more of the following described “Events of Default” shall occur:

(a) The Company shall default in the payment of principal or interest on this Note or any other note issued to the Holder by the Company; or

(b) Any of the representations or warranties made by the Company herein or in any certificate or financial or other written statements heretofore or hereafter furnished by or on behalf of the Company in connection with the execution and delivery of this Note, or the Securities Purchase Agreement under which this note was issued shall be false or misleading in any respect; or

(c) The Company shall fail to perform or observe, in any respect, any covenant, term, provision, condition, agreement or obligation of the Company under this Note or any other note issued to the Holder; or

(d) The Company shall (1) become insolvent (which does not include a “going concern opinion); (2) admit in writing its inability to pay its debts generally as they mature; (3) make an assignment for the benefit of creditors or commence proceedings for its dissolution; (4) apply for or consent to the appointment of a trustee, liquidator or receiver for its or for a substantial part of its property or business; (5) file a petition for bankruptcy relief, consent to the filing of such petition or have filed against it an involuntary petition for bankruptcy relief, all under federal or state laws as applicable; or

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(e) A trustee, liquidator or receiver shall be appointed for the Company or for a substantial part of its property or business without its consent and shall not be discharged within sixty (60) days after such appointment; or

(f) Any governmental agency or any court of competent jurisdiction at the instance of any governmental agency shall assume custody or control of the whole or any substantial portion of the properties or assets of the Company; or

(g) One or more money judgments, writs or warrants of attachment, or similar process, in excess of fifty thousand dollars ($50,000) in the aggregate, shall be entered or filed against the Company or any of its properties or other assets and shall remain unpaid, unvacated, unbonded or unstayed for a period of fifteen (15) days or in any event later than five (5) days prior to the date of any proposed sale thereunder; or

(h) Defaulted on or breached any term of any other note of similar debt instrument into which the Company has entered and failed to cure such default within the appropriate grace period; or

(i) The Company shall have its Common Stock delisted from an exchange (including the OTC Markets exchange) or, if the Common Stock trades on an exchange, then trading in the Common Stock shall be suspended for more than 10 consecutive days or ceases to file its 1934 act reports with the SEC;

(j) If a majority of the members of the Board of Directors of the Company on the date hereof are no longer serving as members of the Board;

(k) The Company shall not deliver to the Holder the Common Stock pursuant to paragraph 4 herein without restrictive legend within 3 business days of its receipt of a Notice of Conversion which includes an Opinion of Counsel expressing an opinion which supports the removal of a restrictive legend; or

(l) The Company shall not replenish the reserve set forth in Section 12, within 3 business days of the request of the Holder.

(m) The Company shall be delinquent in its periodic report filings with the Securities and Exchange Commission; or

(n) The Company shall cause to lose the “bid” price for its stock in a market (including the OTC marketplace or other exchange).

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Then, or at any time thereafter, unless cured (except for 8(m) and 8(n) which are incurable defaults, the sole remedy of which is to allow the Holder to cancel both this Note and the Holder Issued Note, and in each and every such case, unless such Event of Default shall have been waived in writing by the Holder (which waiver shall not be deemed to be a waiver of any subsequent default) at the option of the Holder and in the Holder’s sole discretion, the Holder may consider this Note immediately due and payable, without presentment, demand, protest or (further) notice of any kind (other than notice of acceleration), all of which are hereby expressly waived, anything herein or in any note or other instruments contained to the contrary notwithstanding, and the Holder may immediately, and without expiration of any period of grace, enforce any and all of the Holder’s rights and remedies provided herein or any other rights or remedies afforded by law. Upon an Event of Default, interest shall accrue at a default interest rate of 24% per annum or, if such rate is usurious or not permitted by current law, then at the highest rate of interest permitted by law. In the event of a breach of Section 8(k), the parties agree that damages shall be difficult to determine and in lieu of a penalty, the parties agree to a liquidated damages payment of $250 per day the shares are not issued beginning on the 4 ^th day after the conversion notice was delivered to the Company. This liquidated damages payment shall increase to $500 per day beginning on the 10 ^th day. In the event of a breach of Section 8(p), the parties agree that damages shall be difficult to determine and in lieu of a penalty, the parties agree to an increase of the outstanding principal amounts by 20% as a liquidated damages payment. In case of a breach of Section 8(i), the parties agree that damages shall be difficult to determine and in lieu of a penalty, the parties agree to an increase of the outstanding principal amounts by 50% as a liquidated damages payment. Further, if a breach of Section 8(o) occurs or is continuing after the 6 month anniversary of the Note, then the Holder shall be entitled to use the lowest closing bid price during the delinquency period as a base price for the conversion. For example, if the lowest closing bid price during the delinquency period is $0.01 per share and the conversion discount is 50% the Holder may elect to convert future conversions at $0.005 per share. If this Note is not paid at maturity, the outstanding principal due under this Note shall increase by 10%.

If the Holder shall commence an action or proceeding to enforce any provisions of this Note, including, without limitation, engaging an attorney, then if the Holder prevails in such action, the Holder shall be reimbursed by the Company for its attorneys’ fees and other costs and expenses incurred in the investigation, preparation and prosecution of such action or proceeding.

Make-Whole for Failure to Deliver Loss. At the Holder’s election, if the Company fails for any reason to deliver to the Holder the conversion shares by the by the 3rd business day following the delivery of a Notice of Conversion to the Company and if the Holder incurs a Failure to Deliver Loss, then at any time the Holder may provide the Company written notice indicating the amounts payable to the Holder in respect of the Failure to Deliver Loss and the Company must make the Holder whole as follows:

Failure to Deliver Loss = [(Highest VWAP for the 30 days on or after the day of exercise) x (Number of conversion shares)]

The Company must pay the Failure to Deliver Loss by cash payment, and any such cash payment must be made by the third business day from the time of the Holder’s written notice to the Company.

9. In case any provision of this Note is held by a court of competent jurisdiction to be excessive in scope or otherwise invalid or unenforceable, such provision shall be adjusted rather than voided, if possible, so that it is enforceable to the maximum extent possible, and the validity and enforceability of the remaining provisions of this Note will not in any way be affected or impaired thereby.

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10. Neither this Note nor any term hereof may be amended, waived, discharged or terminated other than by a written instrument signed by the Company and the Holder. This Note may not be assigned without the prior written consent of the Company.

11. The Company represents that it is not a “shell” issuer and that if it previously has been a “shell” issuer that at least 12 months have passed since the Company has reported Form 10 type information indicating it is no longer a “shell issuer.

12. The Company will issue irrevocable transfer agent instructions reserving 32,621,000 shares of its Common Stock for conversions under this Note, and all other Company notes held by the Holder (the “Share Reserve”). Upon full conversion of this Note, any shares remaining in the Share Reserve shall be cancelled. The Company shall pay all transfer agent costs associated with issuing and delivering the share certificates to the Holder, as well as maintaining the Share Reserve. If such amounts are to be paid by the Holder, it may deduct such amounts from the Conversion Price. The company should at all times reserve a minimum of four times the amount of shares required if the note would be fully converted. The Holder may reasonably request increases from time to time to reserve such amounts. The Company will instruct its transfer agent to provide the outstanding share information to the Holder in connection with its conversions.

13. The Company will give the Holder direct notice of any corporate actions, including but not limited to name changes, stock splits, recapitalizations etc. This notice shall be given to the Holder as soon as possible under law.

14. If it shall be found that any interest or other amount deemed interest due hereunder violates the applicable law governing usury, the applicable provision shall automatically be revised to equal the maximum rate of interest or other amount deemed interest permitted under applicable law. The Company covenants (to the extent that it may lawfully do so) that it will not seek to claim or take advantage of any law that would prohibit or forgive the Company from paying all or a portion of the principal or interest on this Note.

15. This Note shall be governed by and construed in accordance with the laws of New York applicable to contracts made and wholly to be performed within the State of New York and shall be binding upon the successors and assigns of each party hereto. The Holder and the Company hereby mutually waive trial by jury and consent to exclusive jurisdiction and venue in the courts of the State of New York or in the Federal courts sitting in the county or city of New York. This Agreement may be executed in counterparts, and the facsimile transmission of an executed counterpart to this Agreement shall be effective as an original.

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IN WITNESS WHEREOF, the Company has caused this Note to be duly executed by an officer thereunto duly authorized.

Dated: _____________

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EXHIBIT A

NOTICE OF CONVERSION

(To be Executed by the Registered Holder in order to Convert the Note)

The undersigned hereby irrevocably elects to convert $___________ of the above Note into _________ Shares of Common Stock of PositiveID Corp. (“Shares”) according to the conditions set forth in such Note, as of the date written below.

If Shares are to be issued in the name of a person other than the undersigned, the undersigned will pay all transfer and other taxes and charges payable with respect thereto.

Shares are to be sent or delivered to the following account:

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Exhibit 4.3

THIS NOTE AND THE COMMON STOCK ISSUABLE UPON CONVERSION OF THIS NOTE HAVE NOT BEEN AND WILL NOT BE REGISTERED WITH THE UNITED STATES SECURITIES AND EXCHANGE COMMISSION OR THE SECURITIES COMMISSION OF ANY STATE PURSUANT TO AN EXEMPTION FROM REGISTRATION PROVIDED UNDER THE SECURITIES ACT OF 1933, AS AMENDED, AND THE RULES AND REGULATIONS PROMULGATED THEREUNDER (THE “1933 ACT”)

US $52,000.00

FORM OF POSITIVEID CORP.

12% CONVERTIBLE REDEEMABLE NOTE

DUE SEPTEMBER 12, 2018

BACK END NOTE

FOR VALUE RECEIVED, PositiveID Corp. (the “Company”) promises to pay to the order of UNION CAPITAL, LLC and its authorized successors and Permitted Assigns, defined below, (“ Holder ”), the aggregate principal face amount of Fifty Two Thousand Dollars exactly (U.S. $52,000.00) on September 12, 2018 (“ Maturity Date ”) and to pay interest on the principal amount outstanding hereunder at the rate of 12% per annum commencing on September 12, 2017. The interest will be paid to the Holder in whose name this Note is registered on the records of the Company regarding registration and transfers of this Note. The principal of, and interest on, this Note are payable at 525 Norton Parkway, New Haven, CT 06511, initially, and if changed, last appearing on the records of the Company as designated in writing by the Holder hereof from time to time. The Company will pay each interest payment and the outstanding principal due upon this Note before or on the Maturity Date, less any amounts required by law to be deducted or withheld, to the Holder of this Note by check or wire transfer addressed to such Holder at the last address appearing on the records of the Company. The forwarding of such check or wire transfer shall constitute a payment of outstanding principal hereunder and shall satisfy and discharge the liability for principal on this Note to the extent of the sum represented by such check or wire transfer. Interest shall be payable in Common Stock (as defined below) pursuant to paragraph 4(b) herein. Permitted Assigns means any Holder assignment, transfer or sale of all or a portion of this Note accompanied by an Opinion of Counsel as provided for in Section 2(f) of the Securities Purchase Agreement.

This Note is subject to the following additional provisions:

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1. This Note is exchangeable for an equal aggregate principal amount of Notes of different authorized denominations, as requested by the Holder surrendering the same. No service charge will be made for such registration or transfer or exchange, except that Holder shall pay any tax or other governmental charges payable in connection therewith. To the extent that Holder subsequently transfers, assigns, sells or exchanges any of the multiple lesser denomination notes, Holder acknowledges that it will provide the Company with Opinions of Counsel as provided for in Section 2(f) of the Securities Purchase Agreement.

2. The Company shall be entitled to withhold from all payments any amounts required to be withheld under applicable laws.

3. This Note may be transferred or exchanged only in compliance with the Securities Act of 1933, as amended (“ Act ”), applicable state securities laws and Sections 2(f) and 5(f) of the Securities Purchase Agreement. Any attempted transfer to a non-qualifying party shall be treated by the Company as void. Prior to due presentment for transfer of this Note, the Company and any agent of the Company may treat the person in whose name this Note is duly registered on the Company’s records as the owner hereof for all other purposes, whether or not this Note be overdue, and neither the Company nor any such agent shall be affected or bound by notice to the contrary. Any Holder of this Note electing to exercise the right of conversion set forth in Section 4(a) hereof, in addition to the requirements set forth in Section 4(a), and any prequalified prospective transferee of this Note, also is required to give the Company written confirmation that this Note is being converted (“ Notice of Conversion ”) in the form annexed hereto as Exhibit A . The date of receipt (including receipt by telecopy) of such Notice of Conversion shall be the Conversion Date. All notices of conversion will be accompanied by an Opinion of Counsel.

4. (a) The Holder of this Note is entitled, at its option, at any time, to convert all or any amount of the principal face amount of this Note then outstanding into shares of the Company’s common stock (the “ Common Stock ”) at a price (“ Conversion Price ”) for each share of Common Stock equal to 62.5 % of the lowest closing bid price of the Common Stock as reported on the National Quotations Bureau OTC Markets exchange which the Company’s shares are traded or any exchange upon which the Common Stock may be traded in the future (“ Exchange ”), for the fifteen prior trading days including the day upon which a Notice of Conversion is received by the Company (provided such Notice of Conversion is delivered together with an Opinion of Counsel, by fax or other e lectronic method of communication to the Company after 4 P.M. Eastern Standard or Daylight Savings Time if the Holder wishes to include the same day closing price). If the shares have not been delivered within 3 business days, the Notice of Conversion may be rescinded. Such conversion shall be effectuated by the Company delivering the shares of Common Stock to the Holder within 3 business days of receipt by the Company of the Notice of Conversion. Accrued, but unpaid interest shall be subject to conversion. No fractional shares or scrip representing fractions of shares will be issued on conversion, but the number of shares issuable shall be rounded to the nearest whole share. To the extent the Conversion Price of the Company’s Common Stock closes below the par value per share, the Company will take all steps necessary to solicit the consent of the stockholders to reduce the par value to the lowest value possible under law. The Company agrees to honor all conversions submitted pending this increase. In the event the Company experiences a DTC “Chill” on its shares, the conversion price shall be decreased to 52.5% instead of 62.5% while that “Chill” is in effect. In no event shall the Holder be allowed to effect a conversion if such conversion, along with all other shares of Company Common Stock beneficially owned by the Holder and its affiliates would exceed 9.9% of the outstanding shares of the Common Stock of the Company. In the event the adjusted Conversion Price over the other $52,000 note dated September 12, 2017 (the “Front End Note”) is lower, then the Conversion Price of this note shall be adjusted to match the Conversion Price of the Front End Note. The conversion discount and lookback period will be adjusted downward (i.e. for the benefit of the Holder) if the Company offers a more favorable conversion discount (whether via interest, rate OID or otherwise) or lookback period to another party while this note is in effect and the Holder will also get the benefit of any other term (for an example, a higher prepay) granted to any third party while this Note is in effect.

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(b) Interest on any unpaid principal balance of this Note shall be paid at the rate of 12% per annum. Interest shall be paid by the Company in Common Stock (“Interest Shares”). Holder may, at any time, send in a Notice of Conversion to the Company for Interest Shares based on the formula provided in Section 4(a) above. The dollar amount converted into Interest Shares shall be all or a portion of the accrued interest calculated on the unpaid principal balance of this Note to the date of such notice. The 12% interest is guaranteed, and is such in no event shall the interest be less than 12% of the $52,000 principal amount and this amount may be added the principal amount of this Note for purposes of conversions and repayments.

(c) This Note may not be prepaid, except that if the $52,000 Rule 144 convertible redeemable note issued by the Company of even date herewith is redeemed by the Company within 6 months of the issuance date of such Note, all obligations of the Company under this Note and all obligations of the Holder under the Holder issued Back End Note will be automatically be deemed satisfied and this Note and the Holder issued Back End Note will be automatically be deemed cancelled and of no further force or effect.

(d) Upon (i) a transfer of all or substantially all of the assets of the Company to any person in a single transaction or series of related transactions, (ii) a reclassification, capital reorganization (excluding an increase in authorized capital) or other change or exchange of outstanding shares of the Common Stock, other than a forward or reverse stock split or stock dividend, or (iii) any consolidation or merger of the Company with or into another person or entity in which the Company is not the surviving entity (other than a merger which is effected solely to change the jurisdiction of incorporation of the Company and results in a reclassification, conversion or exchange of outstanding shares of Common Stock solely into shares of Common Stock) (each of items (i), (ii) and (iii) being referred to as a “Sale Event”), then, in each case, the Company shall, upon request of the Holder, redeem this Note in cash for 150% of the principal amount, plus accrued but unpaid interest through the date of redemption, or at the election of the Holder, such Holder may convert the unpaid principal amount of this Note (together with the amount of accrued but unpaid interest) into shares of Common Stock immediately prior to such Sale Event at the Conversion Price.

(e) In case of any Sale Event (not to include a sale of all or substantially all of the Company’s assets) in connection with which this Note is not redeemed or converted, the Company shall cause effective provision to be made so that the Holder of this Note shall have the right thereafter, by converting this Note, to purchase or convert this Note into the kind and number of shares of stock or other securities or property (including cash) receivable upon such reclassification, capital reorganization or other change, consolidation or merger by a holder of the number of shares of Common Stock that could have been purchased upon exercise of the Note and at the same Conversion Price, as defined in this Note, immediately prior to such Sale Event. The foregoing provisions shall similarly apply to successive Sale Events. If the consideration received by the holders of Common Stock is other than cash, the value shall be as determined by the Board of Directors of the Company or successor person or entity acting in good faith.

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5. No provision of this Note shall alter or impair the obligation of the Company, which is absolute and unconditional, to pay the principal of, and interest on, this Note at the time, place, and rate, and in the form, herein prescribed.

6. The Company hereby expressly waives demand and presentment for payment, notice of non-payment, protest, notice of protest, notice of dishonor, notice of acceleration or intent to accelerate, and diligence in taking any action to collect amounts called for hereunder and shall be directly and primarily liable for the payment of all sums owing and to be owing hereto.

7. The Company agrees to pay all costs and expenses, including reasonable attorneys’ fees and expenses, which may be incurred by the Holder in collecting any amount due under this Note.

8. If one or more of the following described “Events of Default” shall occur:

(a) The Company shall default in the payment of principal or interest on this Note or any other note issued to the Holder by the Company; or

(b) Any of the representations or warranties made by the Company herein or in any certificate or financial or other written statements heretofore or hereafter furnished by or on behalf of the Company in connection with the execution and delivery of this Note, or the Securities Purchase Agreement under which this note was issued shall be false or misleading in any respect; or

(c) The Company shall fail to perform or observe, in any respect, any covenant, term, provision, condition, agreement or obligation of the Company under this Note or any other note issued to the Holder; or

(d) The Company shall (1) become insolvent (which does not include a “going concern opinion); (2) admit in writing its inability to pay its debts generally as they mature; (3) make an assignment for the benefit of creditors or commence proceedings for its dissolution; (4) apply for or consent to the appointment of a trustee, liquidator or receiver for its or for a substantial part of its property or business; (5) file a petition for bankruptcy relief, consent to the filing of such petition or have filed against it an involuntary petition for bankruptcy relief, all under federal or state laws as applicable; or

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(e) A trustee, liquidator or receiver shall be appointed for the Company or for a substantial part of its property or business without its consent and shall not be discharged within sixty (60) days after such appointment; or

(f) Any governmental agency or any court of competent jurisdiction at the instance of any governmental agency shall assume custody or control of the whole or any substantial portion of the properties or assets of the Company; or

(g) One or more money judgments, writs or warrants of attachment, or similar process, in excess of fifty thousand dollars ($50,000) in the aggregate, shall be entered or filed against the Company or any of its properties or other assets and shall remain unpaid, unvacated, unbonded or unstayed for a period of fifteen (15) days or in any event later than five (5) days prior to the date of any proposed sale thereunder; or

(h) Defaulted on or breached any term of any other note of similar debt instrument into which the Company has entered and failed to cure such default within the appropriate grace period; or

(i) The Company shall have its Common Stock delisted from an exchange (including the OTC Markets exchange) or, if the Common Stock trades on an exchange, then trading in the Common Stock shall be suspended for more than 10 consecutive days or ceases to file its 1934 act reports with the SEC;

(j) If a majority of the members of the Board of Directors of the Company on the date hereof are no longer serving as members of the Board;

(k) The Company shall not deliver to the Holder the Common Stock pursuant to paragraph 4 herein without restrictive legend within 3 business days of its receipt of a Notice of Conversion which includes an Opinion of Counsel expressing an opinion which supports the removal of a restrictive legend; or

(l) The Company shall not replenish the reserve set forth in Section 12, within 3 business days of the request of the Holder.

(m) The Company’s Common Stock has a closing bid price of less than $0.005 per share for at least 5 consecutive trading days; or

(n) The aggregate dollar trading volume of the Company’s Common Stock is less than forty thousand dollars ($40,000.00) in any 5 consecutive trading days; or

(o) The Company shall cease to be “current” in its filings with the Securities and Exchange Commission; or

(p) The Company shall lose the “bid” price for its stock in a market (including the OTC marketplace or other exchange)

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Then, or at any time thereafter, unless cured (except for 8(m) and 8(n) which are incurable defaults, the sole remedy of which is to allow the Holder to cancel both this Note and the Holder Issued Note, and in each and every such case, unless such Event of Default shall have been waived in writing by the Holder (which waiver shall not be deemed to be a waiver of any subsequent default) at the option of the Holder and in the Holder’s sole discretion, the Holder may consider this Note immediately due and payable, without presentment, demand, protest or (further) notice of any kind (other than notice of acceleration), all of which are hereby expressly waived, anything herein or in any note or other instruments contained to the contrary notwithstanding, and the Holder may immediately, and without expiration of any period of grace, enforce any and all of the Holder’s rights and remedies provided herein or any other rights or remedies afforded by law. Upon an Event of Default, interest shall accrue at a default interest rate of 24% per annum or, if such rate is usurious or not permitted by current law, then at the highest rate of interest permitted by law. In the event of a breach of Section 8(k), the parties agree that damages shall be difficult to determine and in lieu of a penalty, the parties agree to a liquidated damages payment of $250 per day the shares are not issued beginning on the 4 ^th day after the conversion notice was delivered to the Company. This liquidated damages payment shall increase to $500 per day beginning on the 10 ^th day. In the event of a breach of Section 8(p), the parties agree that damages shall be difficult to determine and in lieu of a penalty, the parties agree to an increase of the outstanding principal amounts by 20% as a liquidated damages payment. In case of a breach of Section 8(i), the parties agree that damages shall be difficult to determine and in lieu of a penalty, the parties agree to an increase of the outstanding principal amounts by 50% as a liquidated damages payment. Further, if a breach of Section 8(o) occurs or is continuing after the 6 month anniversary of the Note, then the Holder shall be entitled to use the lowest closing bid price during the delinquency period as a base price for the conversion. For example, if the lowest closing bid price during the delinquency period is $0.01 per share and the conversion discount is 50% the Holder may elect to convert future conversions at $0.005 per share. If this Note is not paid at maturity, the outstanding principal due under this Note shall increase by 10%.

If the Holder shall commence an action or proceeding to enforce any provisions of this Note, including, without limitation, engaging an attorney, then if the Holder prevails in such action, the Holder shall be reimbursed by the Company for its attorneys’ fees and other costs and expenses incurred in the investigation, preparation and prosecution of such action or proceeding.

Make-Whole for Failure to Deliver Loss. At the Holder’s election, if the Company fails for any reason to deliver to the Holder the conversion shares by the by the 3rd business day following the delivery of a Notice of Conversion to the Company and if the Holder incurs a Failure to Deliver Loss, then at any time the Holder may provide the Company written notice indicating the amounts payable to the Holder in respect of the Failure to Deliver Loss and the Company must make the Holder whole as follows:

Failure to Deliver Loss = [(Highest VWAP for the 30 days on or after the day of exercise) x (Number of conversion shares)]

The Company must pay the Failure to Deliver Loss by cash payment, and any such cash payment must be made by the third business day from the time of the Holder’s written notice to the Company.

9. In case any provision of this Note is held by a court of competent jurisdiction to be excessive in scope or otherwise invalid or unenforceable, such provision shall be adjusted rather than voided, if possible, so that it is enforceable to the maximum extent possible, and the validity and enforceability of the remaining provisions of this Note will not in any way be affected or impaired thereby.

10. Neither this Note nor any term hereof may be amended, waived, discharged or terminated other than by a written instrument signed by the Company and the Holder. This Note may not be assigned without the prior written consent of the Company.

11. The Company represents that it is not a “shell” issuer and that if it previously has been a “shell” issuer that at least 12 months have passed since the Company has reported Form 10 type information indicating it is no longer a “shell issuer.

12. Prior to cash funding of this Note, The Company will issue irrevocable transfer agent instructions reserving 3x the number of shares of Common Stock necessary to allow the holder to convert this note based on the discounted conversion price set forth in Section 4(a) herewith. Upon full conversion of this Note, the reserve representing this Note shall be cancelled. The Company will pay all transfer agent costs associated with issuing and delivering the shares to the Holder, as well as maintaining the Share Reserve. If such amounts are to be paid by the Holder, it may deduct such amounts from the Conversion Price. Conversion Notices may be sent to the Company or its transfer agent via electric mail. The Company will instruct its transfer agent to provide the outstanding share information to the Holder in connection with its conversions.

13. The Company will give the Holder direct notice of any corporate actions, including but not limited to name changes, stock splits, recapitalizations etc. This notice shall be given to the Holder as soon as possible under law.

14. If it shall be found that any interest or other amount deemed interest due hereunder violates the applicable law governing usury, the applicable provision shall automatically be revised to equal the maximum rate of interest or other amount deemed interest permitted under applicable law. The Company covenants (to the extent that it may lawfully do so) that it will not seek to claim or take advantage of any law that would prohibit or forgive the Company from paying all or a portion of the principal or interest on this Note.

15. This Note shall be governed by and construed in accordance with the laws of New York applicable to contracts made and wholly to be performed within the State of New York and shall be binding upon the successors and assigns of each party hereto. The Holder and the Company hereby mutually waive trial by jury and consent to exclusive jurisdiction and venue in the courts of the State of New York or in the Federal courts sitting in the county or city of New York. This Agreement may be executed in counterparts, and the facsimile transmission of an executed counterpart to this Agreement shall be effective as an original.

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IN WITNESS WHEREOF, the Company has caused this Note to be duly executed by an officer thereunto duly authorized.

Dated: ____________

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EXHIBIT A

NOTICE OF CONVERSION

(To be Executed by the Registered Holder in order to Convert the Note)

The undersigned hereby irrevocably elects to convert $___________ of the above Note into _________ Shares of Common Stock of PositiveID Corp. (“Shares”) according to the conditions set forth in such Note, as of the date written below.

If Shares are to be issued in the name of a person other than the undersigned, the undersigned will pay all transfer and other taxes and charges payable with respect thereto.

Shares are to be sent or delivered to the following account:

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