EXHIBIT 23.7

Consent of Robert L. Barbanell

The  undersigned  hereby  consents  to the  inclusion  of  his/her  name in this
registration  statement  as a person to become a director  of Sentry  Technology
Corporation in connection with the merger of Video Sentry  Corporation and Knogo
North America Inc.

Signature: /s/ Robert L. Barbanell
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Date: January 17, 1997