uxcell Ceiling Mounted Dual Element Infrared Motion Sensor Detector PIR Alarm Product Name : PIR Alarm;Model : PA-465;Sensor : Two Element, Square Shape, Low Noise, High Sensitivity;Signal Process : Autopulse, 2 Level, Temperature Compensation, Metallic Shield Detect Speed : 0.2m ~ 7m/ second;Working Temperature : -10C ~ +50C;Input Power : DC 9~16V max. 18mA;Lens : LODIFF Lens Detect Range : 7m x 8.5m When Installed at the Height of 2.4m;Detect Zones : 12+12+12+12+6+1=55;Install Height : 2.2m ~4.5m;Alarm Indicator : Red Light Lasting for 3 Seconds Alarm Output : NO, 28V DC 0.15A;Tamper Output : NO, 28V DC 0.15A max.;Humidity : 95%;Size : 10.7cm x 3.7cm/4.2&#39;&#39; x 1.5&#39;&#39; (D*T) Casing Material : Hard Plastic;Casing Color : White;Net Weight : 72g;Package Content : 1 x PIR Alarm