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 16, 1999, in Amendment No. 5 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
February 2, 2000