Best Seller | VON DUPRIN 33A-ALK-3-US28 Exit Door Alarm Kit Exit Door Alarm Kit, Finish Satin Aluminum, Cylinder Type Mortise, Alarm Type Horn, Inside Keyed Cylinder Type Mortise, Siren Style Horn, Activated By Unauthorized Egress, Alarm Duration Variable, Door Handing Nonhanded, Body Length 36 in, Decibels 85... ... more VON DUPRIN 33A-ALK-3-US28 Exit Door Alarm Kit Exit Door Alarm Kit, Finish Satin Aluminum, Cylinder Type Mortise, Alarm Type Horn, Inside Keyed Cylinder Type Mortise, Siren Style Horn, Activated By Unauthorized Egress, Alarm Duration Variable, Door Handing Nonhanded, Body Length 36 in, Decibels 85... | | $596.99 go to store |