Honeywell Compact PIR Motion Sensor With Pet-Immunity IS312BHoneywell Compact PIR Motion Sensor With Pet Immunity IS312B Designed with the installer in mind, this small form factor motion detector offers a trouble free, out of the box experience to simplify the install process and reduce install time. Optimum performance is achieved using custom developed extended range Fresnel optics, look down, cover tamper, and electable pet immunity up to 36 kg. IS312 infrared. Cutting edge sensing technologies and a wide