Highly effective, alarm alerts you to any unauthorized exits/ entries through
emergency exit doors and rear doors. Serves as an inexpensive security device
and helps stop theft as well.If the protected door is opened, the electronic
Exit Stopper (STI-6400) emits an ear piercing alarm for 30 seconds, three
minutes or continuously (as preset by the user). A key operated override will
silence the alarm and allow authorized exits. Another option is annunciator
mode, in this mode it announces a doors opening with a set of 10 beeps and then
resets. Exit Stopper is fitted with a long life 9-VDC alkaline battery. It is
available in red or green for almost any type of door, mounting or installation.