Chamberlain Wireless Motion Sensor Alert System Long Range Driveway Outdoor Safe Home Alarm CWA2000

Itswirelessmotiondetectorletsyouknowthroughlightandsoundwhenpeopleorvehiclesareapproachingyourproperty. Topreventfalsealarms, itallowsyoutocustomizeitssensitivitysensors, too.