Wheelock telephone relays activate various appliances when a telephone ring voltage is detected. Two models are available to accommodate different voltage requirements, environments and
applications. For indoor and outdoor applications.
Wheelock Series CA Common Audible Control Units monitor multiple analog telephone lines (tip and ring) to provide all call signaling, zoned signaling or night bell connection. These control units also enable connection for operation of external audible or visual alerts to be operated directly off th Learn More
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Telephone Dry Contact Closure Interface Wheelock Series DCI-24-24
Wheelock CRT-T-40 weatherproof AC/DC telephone relay will activate various appliances when a telephone ring voltage is detected. Remote control your thermostat, appliances and other electric or electronic devices using a touch tone telephone. Touch tone signals are received and activate the relay us Learn More