Chamberlain Wireless Motion Sensor
More Control: Systme creates an expandable safe perimeter anywhere and is ideal for homes, businesses, worksites or any properties with no fencing; a base monitor communicates with a weatherproof outdoor sensor with an adjustable sensitivity control
Simply Secure: Passive infrared (PIR) alerts with a unique light and sound pattern to identify which sensor has been triggered when vehicles or pedestrians approach, while allowing small animals to pass undetected
Easy Setup: No wiring is required and the base unit uses the included AC adapter or AA batteries (not included), which will last up to two years
