Von Duprin Von Duprin 4ft. Alarm Kit with Internal Horn for 99 Series Exit Device

4' Alarm Kit with Internal Horn for 99 Series Exit DeviceThe ALK battery alarm kit is a simple yet effective way to deter unauthorized use of an opening. While the exit device is still a means of egress, the ALK kit contains an internal horn. When the touch bar is depressed, the horn sounds to provide an audible means of signaling that the opening has been violated. The alarm kit can be armed or disarmed by key thus allowing the exit device to be set in an armed or disarmed mode. The key switch uses a st...