The INDIGO acoustic glass-break detector is used to protect the premises
with a large amount of glazing. It is designed to detect breaking of
regular, tempered and laminated glass. The detector analyzes the acoustic
signal in two ways – first, for the sound of glass pane impact (low frequency),
and then for the sound of breaking glass (high frequency). The alarm is only
reported after the two signals are detected. This eliminates signaling such
harmless events as, for example, wind knocking tree branches against the
window. The detector comes with a smooth control of detection sensitivity,
tamper switch and supply voltage control. It is recommended that you use INDIGO
TESTER to check the acoustic glass-break detectors for proper
operation.