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. 3)


                      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)


                                January 28, 2005
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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.
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      NUMBER OF       7     SOLE VOTING POWER
       SHARES
     BENEFICIALLY           65,332
      OWNED BY        ----------------------------------------------------------
        EACH          8     SHARED VOTING POWER
     REPORTING
       PERSON               60,966
        WITH          ----------------------------------------------------------
                      9     SOLE DISPOSITIVE POWER

                            65,332
                      ----------------------------------------------------------
                      10    SHARED DISPOSITIVE POWER

                            60,966
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11    AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

      126,298
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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)

      7.46%
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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;


                                      -3-


            (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 126,298 Shares,
representing  7.46%  of the  class  of  securities  covered  by this  statement,
including (i) 60,966 Shares owned jointly by the Reporting  Person and his wife,
and (ii)  65,332  Shares  which  the  Reporting  Person  has a right to  acquire
pursuant to outstanding options exercisable within 60 days from the date hereof.


                                      -4-


            (b) The Reporting Person has sole voting and dispositive  power with
respect to the 65,332 which may be acquired upon exercise of options, and shares
voting and dispositive  power with respect to the 60,966 shares owned jointly by
the Reporting Person and his wife.

            (c) The  Reporting  Person  caused his IRA to sell  2,500  Shares on
January 28, 2005,  and 8,500 shares on February 1, 2005,  all on the open market
at a gross sale price of $15.50 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: February 2, 2005


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


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