Bosch Blue Line Quad PIR 11m x 11m, ISM-BLQ1 with BONUS BRACKET

You get two PIR detectors in one unit. For an alarm to be activated, both PIRs must signal an alarm.

If you have regular motion in one part of the room that would cause a standard, single PIR detector to alarm repeatedly, using a quad will give you the reliability you need.

The ISM-BLQ1 Quad PIR Detector uses two individual sensors that operate like two PIRs in one.

Each sensor processes signals separately. Both must activate to cause an alarm. This increases reliability, because false alarm sources such as noise spikes and small animals are ignored.

Quad detectors combine an unsurpassed level of catch performance with the highest level of false alarm immunity.

Therefore, they are particularly well suited for challenging installation situations; for example, cases where cross

catch of intruders cannot be guaranteed or where intruders are able to cross the detection pattern very quickly.

Functions

First Step Processing (FSP)

First Step Processing (FSP) almost instantly responds to human targets without producing false alarms from other sources. FSP adjusts the detector's sensitivity based on signal amplitude, polarity, slope, and timing.

This eliminates the need for the installer to select the sensitivity level. Each of the two PIR sensors processes signals individually, and both sensors must agree there is an alarm before the alarm relay activates.