1.Passive Infrared Detector,passive infrared motion detector 2. Low noise, high sensitivity, dual source infrared sensor Main Features:Passive Infrared Detector, passive infrared motion detector1. Low noise, high sensitivity ... - +50 degree celsius Relative humidity: 5% ~ 95% RH Alarm output: NC, 28Vdc 0.15A Dimensions: 66 × 93 × 52mm Passive Infrared Detector (PA-476)