Motion Sensor detects motion up to a distance of 30 feet. It is useful for detection of both intrusion as well as occupancy. Motion Sensor works on two AA batteries for more than an year. Parameter Details Power Source 2 AA Alkaline Batteries Operating Temperature 0°C to 45°C Wireless Protocol WiZN’s Glu Detection Distance Up to 30 feet Detection Angle 100° x 90° (Hor. x Ver.) Dimensions 75 X 64 X 28 mm Weight 110 grams Color White