News Release

FOR IMMEDIATE RELEASE CONTACT: Peter Murdoch

President & CEO

(631) 739-2000

Sentry Technology Attends Brazilian Library Congress And Appoints Distributor

RONKONKOMA, July 20, 2005 -- Sentry Technology Corporation (OTC Bulletin Board: SKVY) announced the presentation of its library security and management products at the CBBD Library Congress in Curitiba, Brazil, ending July 22nd. Sentry, through its former subsidiary ID Systems do Brazil, has a significant presence in the Brazilian library market with approximately 150 systems installed throughout the country in many of the largest academic and public libraries. Sentry has appointed MultiSystems, located in Blumenau/SC, as its exclusive distributor for libraries with nonexclusive rights to sell and install the Company’s SmartTrack traveling camera system. Mr. Antonio Klodzinski, President of MultiSystems, made a presentation to the CBBD delegates on the many services his company offers to libraries with specific focus on the Sentry product line.

“Following the acquisition of the ID Systems group by Sentry Technology Corporation, the Company has refocused its efforts to market ID Systems library security products in Brazil under the Sentry Technology brand through MultiSystems,” said Peter L. Murdoch, President and CEO of Sentry Technology Corporation. “MultiSystems is experienced in the Brazilian library market and is well positioned to successfully grow the Sentry Technology brand.”

“We are very excited to offer the Sentry product line,” said Antonio Klodzinski, President of MultiSystems. “Sentry has the product mix needed for our library marketing program. With Sentry, we are able to service our many existing customers as well as grow the market using the Company’s latest electromagnetic theft detection systems, RFID and patron self service stations.”

Sentry Technology Corporation designs, manufactures, sells and installs a complete line of Radio Frequency (RF) and Electro-Magnetic (EM) EAS systems and Closed Circuit Television (CCTV) solutions. The CCTV product line features the proprietary SentryVisionâ SmartTrack traveling Surveillance System. The Company’s products are used by libraries and retailers to deter theft and internal theft and by industrial and institutional customers to protect assets and people. The Company’s acquisition of ID Systems expands the Company’s product offering to include proximity Access Control, Library Security and Self-Service Systems and Radio Frequency Identification (RFID) solutions. For further information, please visit our website at www.sentrytechnology.com.