CONSENT OF CHARLES J. BIRNBERG, CPA, INDEPENDENT AUDITORS


We consent to the reference to our firm under the caption "Experts" and to the
use of our report dated March 1, 2001, in Post-Effective Amendment No. 1 to the
Registration Statement (Form SB-2) and the related Prospectus of Tech
Laboratories, Inc.


                                              /s/ Charles J. Birnberg
                                              ----------------------------------
                                              Charles J. Birnberg


Hackensack, New Jersey
April 24, 2001