Mortise Cylinder, Satin Chrome, Two Keys2153 387307
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- Help deter unauthorized use of emergency doors by sounding an alarm when door is opened. Alarm surface mounts on the interior side of the door, and magnetic contacts mount on the door frame. Alarms are reversible for right- and left-hand doors. For indoor use only; mounting hardware included. Key-controlled alarms require a mortise cylinder lock (sold separately).