Passive infrared (PIR) detectors detect motion in it's field of view, which as standard is 12-15mtrs, though longer ranges are available.
There are a wide range of PIR detectors available including standard detectors, pet tollerant detectors, quad detectors, 360 degree detectors, anti-mask detectors, curtain detectors to name a few.
Due to advances in technology PIR detectors are more advanced and reliable than ever and they also look a lot better than the PIR's of old.
PIR detectors are favoured by most intruder alarm installers to protect your property.
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