Trigon Electonics’ Castlegate Wireless telephone entry system

The Castlegate Wireless telephone entry system by Corona, Calif.-based Trigon Electronics Inc. is a hands-free system for single residence use. The product utilizes the latest VoIP technology and nonline-of-sight 900MHz broadband RF technology for communication and access control.

The entry system has a range in excess of 4,000 feet and works with all of residence telephones through the patent-pending RDIM interface module.

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