Exit Door Alarm, Finish Anodized Duranodic, Cylinder Type Mortise, Arm Type Key Control, Alarm Type Horn, Inside Keyed Cylinder Type Mortise, Siren Style Horn, Activated By Unauthorized Egress, Alarm Duration Variable, Coverage 30 ft, Door Handing Non-Handed, Body Thickness 2 13/32 in, Body Length 7 45/64 in, Body Height 7 45/64 in, Body Width 2 7/64 in, Decibels 100 dB, Power Source Battery, Housing Material Plastic, For Door Thickness 1-3/4 in, Standards ANSI/BHMA A156.29, cULus