Imapaq Glass Break

Digital signal analysis

The Impaq Glass Break is an acoustic glass break detector designed to provide the earliest possible warning of a potential intruder by detecting the sound of breaking glass.
An advanced microprocessor analyses signals digitally, processing information relating to the frequency, amplitude and timing of every sound.
For maximum false alarm immunity, four separate frequency bands are analysed (Quad Frequency Analysis). The Impaq Glass Break will only indicate an alarm if the signals exactly match those of a window being broken.

Digital flex detection

False alarm immunity is further enhanced by the use of Digital Flex Detection. This detects the low frequency pressure wave transmitted when a window is struck. An alarm signal will only be generated if a flex signal is detected, followed immediately by the shatter signal. This ensures common false alarm sources (e.g. a glass bottle breaking outside) are completely ignored.