The Honeywell-5800PIR-RES is wireless motion detector is pet immune selectable up to 80 pounds. This motion sensor will work with any Honeywell system that supports wireless and the 5800 series wireless devices
Range: 35 x 40 ft.
Battery Type: 3 volt lithium
Battery Life: Up to 5 years
Operating Temp: 14 to 131 degrees F
Size: 3.5" Tall x 2.5" Wide x 1.5" Deep (Super small compared to most others!)