Compact Glass Break Detector
"GBDII PLUS"
 The GBD series is the ultimate in eliminating false alarms while offering excellent protection.
It listens for sounds of breaking glass which produces two sequential signals of different frequencies. The unique phased frequency detection circuitry of these detectors allow detection of both shock and breaking glass signals creating a "false alarm free" glass break detector.
The detector does not need to be attached to the window, providing volume protection and allowing you to protect several windows with one detector.
Features
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