OMB APPROVAL
                                                 OMB NUMBER  3235-0287
                                                 EXPIRES:  JANUARY 31, 2005
                                                 ESTIMATED AVERAGE BURDEN
                                                 HOURS PER RESPONSE  0.5

                     U.S. SECURITIES AND EXCHANGE COMMISSION
                              Washington, DC 20549

                                     FORM 4

                  STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

    Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934,
       Section 17(a) of the Public Utility Holding Company Act of 1935 or
               Section 30(f) of the Investment Company Act of 1940

[_]  Check box if no longer subject to Section 16. Form 4 or Form 5 obligations
     may continue. See Instruction 1(b).

________________________________________________________________________________
1.   Name and Address of Reporting Person

    Ciongoli                        Bernard                M.
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   (Last)                           (First)             (Middle)

   955 Belmont Avenue
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                                    (Street)

     North Haledon                New Jersey          07508
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   (City)                           (State)              (Zip)


________________________________________________________________________________
2.   Issuer Name and Ticker or Trading Symbol


     Tech Laboratories, Inc. (TCHL)
________________________________________________________________________________
3.   IRS Identification Number of Reporting Person, if an Entity (Voluntary)



________________________________________________________________________________
4.   Statement for Month/Day/Year
                1/30/03
                2/1/03
________________________________________________________________________________
5.   If Amendment, Date of Original (Month/Day/Year)


________________________________________________________________________________
6.   Relationship of Reporting Person to Issuer
     (Check all applicable)

     [X]  Director                             [X]  10% Owner
     [X]  Officer (give title below)           [_]  Other (specify below)


________________________________________________________________________________
7.   Individual or Joint/Group Filing (Check applicable line)

     [X]  Form filed by one Reporting Person
     [_]  Form filed by more than one Reporting Person
________________________________________________________________________________



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           Table I -- Non-Derivative Securities Acquired, Disposed of,
                             or Beneficially Owned
================================================================================


                                                                                              5.             6.
                                                              4.                              Amount of      Owner-
                                                              Securities Acquired (A) or      Securities     ship
                                   2A.           3.           Disposed of (D)                 Beneficially   Form:    7.
                       2.          Deemed        Transaction  (Instr. 3, 4 and 5)             Owned Follow-  Direct   Nature of
                       Trans-      Execution     Code         ------------------------------- ing Reported   (D) or   Indirect
1.                     action      Date,         (Instr. 8)                   (A)             Transaction(s) Indirect Beneficial
Title of Security      Date        if  any       ------------     Amount      or     Price    (Instr. 3      (I)      Ownership
(Instr. 3)             (mm/dd/yy)  (mm/dd/yy)     Code     V                  (D)             and 4)         (Instr.4)(Instr. 4)
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Common Stock
Par Value $.01                                                                                520,000
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FORM 4 (continued)

Table II -- Derivative Securities Acquired, Disposed of, or Beneficially Owned
         (e.g., puts, calls, warrants, options, convertible securities)

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                                                                                                           9.        10.
                                                                                                           Number    Owner-
                                                                                                           of        ship
                                                                                                           Deriv-    Form
              2.                                                                                           ative     of
              Conver-                           5.                              7.                         Secur-    Deriv-  11.
              sion                              Number of                       Title and Amount           ities     ative   Nature
              or               3A.              Derivative    6.                of Underlying     8.       Bene-     Secur-  of
              Exer-            Deemed   4.      Securities    Date              Securities        Price    ficially  ity:    In-
              cise     3.      Exe-     Trans-  Acquired (A)  Exercisable and   (Instr. 3 and 4)  of       Owned     Direct  direct
              Price    Trans-  cution   action  or Disposed   Expiration Date   ----------------  Deriv-   Following (D) or  Bene-
1.            of       action  Date,    Code    of(D)         (Month/Day/Year)            Amount  ative    Reported  In-     ficial
Title of      Deriv-   Date    if any   (Instr. (Instr. 3,    ----------------            or      Secur-   Trans-    direct  Owner-
Derivative    ative    (Month/ Month/   8)      4 and 5)      Date     Expira-            Number  ity      action    (I)     ship
Security      Secur-   Day/    Day/     ------  ------------  Exer-    tion               of      (Instr.  (Instr.   (Instr.(Instr.
(Instr. 3)    ity      Year)   Year)    Code V   (A)   (D)    cisable  Date     Title     Shares  5)       4)        4)      4)
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Employment    $.50                                            Presently  10/1/03  Common    100,000          100,000     D
Agreement                                                                         Stock
Option
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Employment    $.50                                            Presently  10/1/03  Common    100,000          100,000     D
Agreement                                                                         Stock
Option
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Employment    $.50                                            Presently  10/1/03  Common    100,000          100,000     D
Agreement                                                                         Stock
Option
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1996           $.9625                                         Presently  3/1/06   Common    100,000          100,000     D
Incentive                                                                         Stock
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Stock Option   $2.68125 1/30/03              A     37,000     Presently  1/2/06   Common    37,000           111,000     D
                                                                                  Stock
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Stock Option   $2.4375                                        Presently  4/24/06  Common    92,666            92,666     D
                                                                                  Stock
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Employment     $.43      2/1/03              A    100,000     Presently  8/1/06   Common   100,000           300,000     D
Agreement                                                                         Stock
Option
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Explanation of Responses:


/S/ Bernard M. Ciongoli                                        April 17, 2003
----------------------------------------------            ----------------------
      **Signature of Reporting Person                             Date

This  statement  is  being  filed  pursuant to the vesting of previously granted
stock  options.  No  new  options  have  been  granted  to  Mr.  Ciongoli.



Reminder: Report on a separate line for each class of securities beneficially
          owned directly or indirectly.

*    If the Form is filed by more than one  Reporting  Person,  see  Instruction
     4(b)(v).

**     Intentional misstatements or omissions of facts constitute Federal
       Criminal Violations.

      See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).

Note:  File three copies of this Form, one of which must be manually signed.
       If space provided is insufficient, see Instruction 6 for procedure.

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