- User touch tone programmable- Non-volatile E memory- 12 digit alarm activated pulse dialer- 6 digit security code to access programming - 6 digit access code disable or enable for additioal control security - Switchable 12V talk battery- Relay interrogation tones- Programmable relay time delays- Cascade up to three RC-3s to control up to nine relays- Programmable ring delay before answering- Status LEDs for relays 1 2 3 and the answer relay- One power adaptor can power up to three units
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