PIR Stabilizer

RFI (Radio Frequency Interference) tends to cause phantom alarms (alarms for no apparent reason) on the same PIR or detector. It is caused by a specific cable length acting as an aerial which passes the signal from the 12Volt supply onto sensitive components within detector. RFI causes the PIR relay to “chatter” or “drop out” altogether resulting in a phantom alarm. The PIR Stabiliser should be fitted inside (or if corner mounted in the recess behind) the troublesome detector and the 12VDC supply connected through it. The stabiliser is quick and easy to install and prevents unnecessary replacement of non-faulty PIR’s.