Exit Door Alarm, Finish Painted Gray, Cylinder Type Mortise, Arm Type Push Bar, Alarm Type Door Mount Exit Alarm, Inside Keyed Cylinder Type Mortise, Activated By Unauthorized Egress, Alarm Duration Variable, Door Handing Non-Handed, Body Thickness 3 3/4 in, Body Dia. 10 3/8 in, Body Length 29 7/8 in, Body Height 10 3/8 in, Body Width 3 3/4 in, Decibels 100 dB, Power Source 9V Battery, Cord Length 10 ft, Housing Material Polycarbonate, For Door Thickness 1-3/4 in to 2-1/4 in