SDC Security Door Controls (SDC)

SDC 492 emergency door release pull station

Emergency Door Release
The SDC 492 emergency door release pull station with built-in alarm from Security Door Controls provides immediate unlocking of one door or all doors on the same circuit while providing local annunciation. The use of the emergency door release may also influence the approval of a locking system installation. Features include 2-SPDT dry contacts, internal alarm and blue finish that cannot be confused with fire alarm stations. Auxiliary contacts may be used for remote annunciation.

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