EXHIBIT 23.1



                    CONSENT OF INDEPENDENT PUBLIC ACCOUNTANTS


     We consent to the  reference  to our firm under the  caption  "Experts"  in
Post-Effective  Amendment  No. 1 to the  Registration  Statement  (Form  S-3 No.
33-87138)  and related  Prospectus of PDT,  Inc. for the  registration  of up to
37,986 shares of its common stock and to the  incorporation by reference therein
of our report dated February 2, 1996, with respect to the consolidated financial
statements of PDT,  Inc.  included in its Annual Report (Form 10-K) for the year
ended December 31, 1995, filed with the Securities and Exchange Commission.

                               ERNST & YOUNG LLP

Woodland Hills, California
June 21, 1996