EXHIBIT 24.5

                                POWER OF ATTORNEY

      KNOW ALL MEN BY THESE PRESENTS, that the person whose signature appears
below constitutes and appoints Bart C. Shuldman his true and lawful
attorney-in-fact, and agent, with full power of substitution and revocation, for
him and in his name, place and stead, in any and all capacities, to sign the
Registration Statement on Form S-3 (the "Registration Statement") of TransAct
Technologies Incorporated (the "Company") relating to the common stock of the
Company and any and all amendments to the Registration Statement, and to file
the same, with all exhibits thereto, and other documents in connection
therewith, with the Securities and Exchange Commission granting unto said
attorney-in-fact and agent full power and authority to do and perform each and
every act and thing requisite and necessary to be done, as fully as to all
intents and purposes as he might or could do in person, hereby ratifying and
confirming all that said attorney-in-fact and agent, or his substitute or
substitutes, may lawfully do or cause to be done by virtue hereof.

Dated: June 18, 2004

                                                 /s/ Steven A. DeMartino
                                                 -------------------------------
                                                 Steven A. DeMartino

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