Interlogix SAW Wireless Indoor PIR Motion Detector, Pet Immune (40 Lbs.) (60-807-95R)
This motion sensor is a passive infrared device that measures the change in temperature in an area of the room. In effect, it âseesâ body heat emitted from a human body as it passes in it’s field of view. This technology has been in use for over 20 years and is perhaps the most reliable method to detect …