Exit Door Alarm Finish Painted Gray Cylinder Type Mortise Arm Type Key Control Alarm Type Piezo Inside Keyed Cylinder Type Mortise Siren Style Horn Activated By Unauthorized Egress Alarm Duration Variable Coverage 100 ft Door Handing Non-Handed Body Thickness 1 in Body Length 3 in Body Height 4 19/32 in Body Width 4 21/32 in Decibels 100 dB Power Source 12/24V AC/12/24V DC Housing Material ABS Plastic For Use With Emergency Exit and Restricted Doors