Chamberlain CWA2000 Motion Alert System, 120 deg Detection, 30 ft Detection

This convenient safety and security system uses passive infrared (PIR) to alert with a unique light and sound pattern to identify which sensor has been triggered. Includes one year warranty, one battery/AC-powered base receiver and one sensor (CWPIR), additional CWPIR sensors sold separately. No wiring is required and the base unit uses the included AC adapter or AA batteries, which will last up to 2 years.Product DetailsManufacturer: THE CHAMBERLAIN GROUP, INCManufacturer's Part Number: CWA2000Show me more Security Motion SensorsProduct FeaturesCreates an expandable safe perimeter anywhereA base monitor communicates with a weatherproof outdoor sensor with an adjustable sensitivity controlSupports up to seven additional sensors (CWPIR) for a radius of up to 30 ft and can detect signals up to 1/2 mile awayProduct Specifications Detection Angle 120 deg Detection Range 30 ft Dimensions 3.52 in W x 3.03 in D x 1.77 in H Includes (1) Battery/AC-Powered Base Receiver, (1) Sensor I