Anti-Ligature Door Alarm Kit, Finish Powder Coated, Cylinder Type Mortise, Arm Type Key Control, Alarm Type Piezo/Strobe, Inside Keyed Cylinder Type Alike, Siren Style Constant, Activated By Motion, Alarm Duration Manual Shut Off, Coverage 2 ft 11-3/8 in to 3 ft 5-3/8 in, Door Handing Left Handed, Body Thickness 1 in, Body Length 36 in to 42 in, Body Height 1 5/8 in, Body Width 1 5/8 in, Decibels 100 dB, Power Source 120V AC, 1 Amps, Housing Material Aluminum, Steel, For Door Thickness 1-3/4 in