If the vibrations exceed a certain threshold (that is sometimes user selectable) they are analyzed by detector circuitry. These sensors are commonly used near glass doors or glass store-front windows.Glass break detectors usually use a microphone, which monitors any noise or vibrations coming from the glass. (August 2014) (Learn how and when to remove this template message) Passive glass break detectorA glass break detector is a sensor used in electronic burglar alarms that detects if a pane of glass is shattered or broken. Unsourced material may be challenged and removed. Please help improve this article by adding citations to reliable sources. From Wikipedia, the free encyclopedia Jump to navigation Jump to search This article does not cite any sources.
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