STI-6402 Exit Stopper Double Door Alarm

STI-6402 Exit Stopper Double Door Alarm unit stops unauthorized exits and entries through double exit doors.  The Exit Door Alarm Stopper is a unique and highly effective way to alert you to any unauthorized exits or entries through any emergency exit door. It can also serve as an inexpensive security device and help prevent theft. The electronic Exit Door Alarm Stopper emits an ear-piercing alarm. When the door is closed, a number of reset options are available including an automatic function. A variety of alarm duration and setup features are available. A key-operated override facility will silence the alarm and allow authorized exits. The Exit Door Alarm Stopper is fitted with a 9V PP3 alkaline battery.