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Feature

Set includes one base receiver and one sensor (ability to additional CWPIR sensors-Sold Separately)
Passive infrared (PIR) sensor is weatherproof and detects motion up to 30ft away and features adjustable sensitivity
Base receiver detects signals from sensors up to a 1/2 mile away (in ideal situations)
Unique sound and light pattern on the base unit identifies which sensor has been triggered
Easy to install, no wiring required. Base units uses AA batteries or included AC adapter; NOTE: Check User Manual in Technical Specification before use

Description

The Chamberlain Motion Sensor with Wireless Motion Alert is a convenient and affordable safety / security system. It features weatherproof outdoor sensor with adjustable sensitivity control. The sensor may be placed up to a mile from the base unit. Alerts with light and sound when vehicles or pedestrians approach within a 30 feet radius. Expandable up to 4 sensors, it is perfect for home, business, property and worksite.