Electric Exit Device, Finish Aluminum, Cylinder Type Mortise, Alarm Type Horn, Siren Style Constant, Activated By Unauthorized Egress, Door Handing Non-Handed, Decibels 85 dB, Power Source 9V Battery, Standards ANSI 156.3 Grade 1, UL/cUL Listed, Includes 6 in x 20 in Decal, 9V Battery