Want to add an outdoor wireless motion sensor to your existing alarm panel? PC Poodle has brought a sensor to market that utilizes solar technology to keep the sensor toped off for up to seven years. Their PIR-40SW sensor has two elements built into the housing and uses fuzzy logic to decide what type of object is in its presences: Cars, People, Small animals Etc. The sensor is great at rejecting false alarms from smaller animals under 40lbs. Amazingly the sensor is compatible with pretty much every panel on the market that supports hard wired door contact sensors by utilizing a wireless relay. Outdoor DSC Wireless Sensor