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Our GBD series glass break detectors utilize the advance sensing technology of acoustic emission which only be responded in the frequency containing in the frequency over 200Khz of overtone frequencies containing in the frequency spectrum while glass being broken.
It is unlike the microphone type detectors that can be easily activated by audible sounds and vibrations.Up to 20 GBD series detectors can be wired in series and linked with all type security systems.
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