SECURITIES AND EXCHANGE COMMISSION
                              WASHINGTON, DC 20549
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                                 SCHEDULE 13D/A
                                 (RULE 13D-101)

                    UNDER THE SECURITIES EXCHANGE ACT OF 1934
                                (AMENDMENT NO. 2)


                      Universal Security Instruments, Inc.
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                                (Name of Issuer)

                                  Common Stock
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                         (Title of Class of Securities)

                                   913821 30 2
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                                 (CUSIP Number)

     Hillel Tendler, Esquire, Neuberger, Quinn, Gielen, Rubin & Gibber, P.A.
     One South Street, 27th Floor, Baltimore, Maryland 21202, (410) 332-8552
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                  (Name, Address and Telephone Number of Person
                Authorized to Receive Notices and Communications)

                                 August 25, 2004
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             (Date of Event Which Requires Filing of This Statement)

      If the filing person has previously filed a statement on Schedule 13G to
report the acquisition which is the subject of this Schedule 13D, and is filing
this schedule because of Rule 13d-1 (e), 13d-1(f) or 13d-1(g), check the
following box: .

      Note. Schedules filed in paper format shall include a signed original and
five copies of the schedule, including all exhibits. See Rule 13d-7(b) for other
parties to whom copies are to be sent.

                         (Continued on following pages)

                               (Page 1 of 5 Pages)





                                                                
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CUSIP NO.   913821 30 2                                  13D          PAGE     2     OF       5       PAGES
          ----------------------------------                               ---------    -------------
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1
         NAME OF REPORTING PERSONS
         S.S. OR I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS

                   Ronald S. Lazarus                                    056-48-5664
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2
                CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*                (a) |_|
                                                                                 (b) |_|

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3
         SEC USE ONLY


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4
         SOURCE OF FUNDS*

         PF
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5
         CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO
         ITEM 2(d) OR 2(e)
                                                                                                           |-|
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6
         CITIZENSHIP OR PLACE OF ORGANIZATION

         U.S.A.
--------------------- ------ ---------------------------------------------------------------------------------------
     NUMBER OF        7      SOLE VOTING POWER
       SHARES
 BENEFICIALLY OWNED          76,332
         BY
   EACH REPORTING     ------ ---------------------------------------------------------------------------------------
    PERSON WITH       8      SHARED VOTING POWER

                             75,167
                      ------ ---------------------------------------------------------------------------------------
                      9      SOLE DISPOSITIVE POWER

                             76,332
                      ------ ---------------------------------------------------------------------------------------
                      10     SHARED DISPOSITIVE POWER

                             75,167
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11       AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
                   151,499
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12       CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
         CERTAIN SHARES*
                                                                                                           |-|
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13       PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
                   9.2%
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14       TYPE OF REPORTING PERSON*
                   IN
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                                  SCHEDULE 13D

ITEM  1. SECURITY AND ISSUER.

      This statement relates to shares of common stock, par value $.01 per share
(the "Shares"), of Universal Security Instruments, Inc. (the "Issuer"), 7-A
Gwynns Mill Court, Owings Mills, Maryland 21117. All Share figures and option
exercise prices in this statement have been adjusted to reflect the Issuer's
stock dividend issued on April 5, 2004.

ITEM  2. IDENTITY AND BACKGROUND.

            (a) The name of the Reporting Person is Ronald S. Lazarus (the
"Reporting Person").

            (b) The Reporting Person's business address is 7-A Gwynns Mill
Court, Owings Mills, Maryland 21117.

            (c) The Reporting Person is president of a subsidiary of the Issuer,
USI Electric, Inc.

            (d) No.

            (e) No.

            (f) The Reporting Person is a citizen of the United States of
America.

ITEM 3. SOURCE AND AMOUNT OF FUNDS OR OTHER CONSIDERATION.

      The Reporting Person acquired the Shares covered by this statement and
Shares previously reported in earlier statements but sold since the dates of
such earlier statements with an aggregate of $97,000 in personal funds. Of the
Shares reported, 86,167 were purchased by the Reporting Person from the Issuer
or on the market from time to time. The balance of the Shares covered by this
statement may be acquired by the Reporting Person pursuant to options granted by
the Issuer exercisable within 60 days from the date hereof.

ITEM 4. PURPOSE OF TRANSACTION.

      The Reporting Person has acquired the Shares covered by this statement
from time to time to increase his equity position in the Issuer.

      The Reporting Person has no current plans or proposals which relate to or
would result in any of the following:

      (a)   The acquisition by any person of additional securities of the
            Issuer, or the disposition of securities of the Issuer;


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      (b)   An extraordinary corporate transaction involving the Issuer or any
            of its subsidiaries;

      (c)   A sale or transfer of a material amount of assets of the Issuer or
            any of its subsidiaries;

      (d)   Any change in the present board of directors or management of the
            Issuer, including any plans or proposals to change the number or
            term of directors or to fill any existing vacancies on the board of
            directors;

      (e)   Any material change in the present capitalization or dividend policy
            of the Issuer;

      (f)   Any other material change in the Issuer's business or corporate
            structure;

      (g)   Changes in the Issuer's charter, bylaws or instruments corresponding
            thereto or other actions which may impede the acquisition of control
            of the Issuer by any person (other than as a result of the Reporting
            Person's stock ownership);

      (h)   Causing a class of securities of the Issuer to be delisted from a
            national securities exchange or to cease to be authorized to be
            quoted in an inter-dealer quotation system of a registered national
            securities association;

      (i)   A class of equity securities of the issuer becoming eligible for
            termination of registration pursuant to Section 12(g)(4) of the
            Securities Exchange Act of 1934; or

      (j)   Any action similar to any of those enumerated above.

      Notwithstanding the foregoing, the Reporting Person may from time to time
acquire beneficial ownership of additional Shares or dispose of any Shares
beneficially owned by him, including pursuant to any stock option or similar
plan of the Issuer in which the Reporting Person is eligible to participate.

ITEM 5. INTEREST IN SECURITIES OF THE ISSUER.

      (a) The Reporting Person is the beneficial owner of 151,499 Shares,
representing 9.2% of the class of securities covered by this statement,
including (i) 11,000 Shares owned by the Reporting Person's self-directed
individual retirement account (IRA), (ii) 75,167 Shares owned jointly by the
Reporting Person and his wife, and (iii) 65,332 Shares which the Reporting
Person has a right to acquire pursuant to outstanding options exercisable within
60 days from the date hereof.


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      (b) The Reporting Person has sole voting and dispositive power with
respect to the 11,000 shares owned by his IRA and the 65,332 which may be
acquired upon exercise of options, and shares voting and dispositive power with
respect to the 75,167 shares owned jointly by the Reporting Person and his wife.

      (c) On August 25, 2004, the Reporting Person sold 1,000 Shares on the open
market at a gross sale price of $10.50 per Share. On August 30, 2004, the
Reporting Person sold 1,300 Shares on the open market at a gross sale price of
$10.25 per Share, and 200 Shares on the open market at a gross sale price of
$10.30 per Share. On September 1, 2004, the Reporting Person sold 3,000 Shares
on the open market at a gross sale price of $10.20 per Share

      (d) Not applicable.

      (e) Not applicable.

ITEM 6. CONTRACTS, ARRANGEMENTS, UNDERSTANDINGS OR RELATIONSHIPS WITH RESPECT TO
        SECURITIES OF THE ISSUER.

      On March 8, 2002, the Issuer confirmed the February 7, 2002 grant of
options to the Reporting Person to acquire 26,666 Shares at an exercise price of
$2.25 per Share, and 13,333 Shares at an exercise price of $1.76 per Share, all
of which are currently exercisable. On September 6, 2002, the Issuer granted
options to the Reporting Person to acquire 25,333 Shares at an exercise price of
$5.40 per Share, all of which are currently exercisable.

ITEM 7. MATERIAL TO BE FILED AS EXHIBITS.

      Not applicable.

SIGNATURE.

      After reasonable inquiry and to the best of my knowledge and belief, I
certify that the information set forth in this statement is true, complete and
correct.

DATE:  September 3, 2004


                                                     /s/ Ronald S. Lazarus
                                                     --------------------------
                                                     Ronald S. Lazarus

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