how do I make a wave box for my subwoofers I need a blueprint?
Depends on the make/model. Some have an access door on the back of the detector (requires removing it from the ceiling). Others have a sliding door on the front of the detector (can be left installed on the ceiling). The battery is still a typical 9 volt. Do verify that this does, in fact, have a battery backup. There are still models out there that are hard wire only.
i dont know about glass breaking sensors, but i have sensors in my car which sense a change of pressure, ie if someone smashes a window or manages to get a door open( my alarm goes off) but glass breaking sensors, it could be the same thing but im not sure!! your alarm should have went off though surely!!
