Exhibit 32.2

                            CERTIFICATION PURSUANT TO
                             18 U.S.C. SECTION 1350
                             AS ADOPTED PURSUANT TO
                  SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report of CompuDyne Corporation (the "Company")
on Form 10-Q for the period ending March 31, 2004 accompanying this
certification and filed with the Securities and Exchange Commission on the date
hereof (the "Report"), I, Geoffrey F. Feidelberg, Chief Financial Officer of the
Company, certify, to the best of my knowledge, pursuant to ss. 906 of the
Sarbanes-Oxley Act of 2002, 18 U.S.C. ss. 1350, that:

         1. The Report fully complies with the requirements of section 13(a) or
15(d) of the Securities Exchange Act of 1934; and

         2. The information contained in the Report fairly presents, in all
material respects, the financial condition and results of operations of the
Company.


Date: May 7, 2004

                                            /s/ Geoffrey F. Feidelberg
                                            --------------------------
                                            Geoffrey F. Feidelberg
                                            Chief Financial Officer