Door prop alarms are low-cost, desirable solutions to propped open doors. Helping keep energy costs down by ensuring the doors are closed, they also serve a vital security need. Sounding when a door ...

The Detex Battery Operated Door Prop Alarm is designed for applications where doors may be used but not held open. The door prop alarm sounds when a door is left open longer than the set time and ...

Detex Corporation, an industry leader in the manufacture of life safety and security door hardware for commercial buildings, offers battery-powered alarm systems that guard against propping doors open ...