Going with probably a deadbolt or flushbolt is what was in your head.
If that were true, either a magnet on the deadbolt or plunger. There's other ways also, I remember installing the Napco Freedom series panels and they monitor the deadbolt to put a little logic into the arm/disarm, like auto stay if not violated SIA CP-01 programming.
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.