To learn about security systems and to help you from from getting ripped off!
10.10.09
Glass Break Detectors
A type of security system device that is currently being used in homes is the glass break detector. This type of device senses the high frequency sound of glass breaking and then sends a signal to the control panel and an alarm is triggered. Unlike a motion detector, it can be left on 24 hours day because nothing but this high frequency sound will cause it to go off. People, animals and normal sounds will not make it go off. Also, it can be mounted in such a way to monitor more than one window in a room. It does not have to touch a window, but, just has to be within sound distance to pick up the breaking noise of the glass. It some cases it is probably not necessary to have window contacts because the glass break detector will sufficiently guard a room. But, the device does have to be in direct line of sight of the windows it is monitoring to work effectively.
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