This is a hardwired motion detector designed for indoor residential applications. It features selectable pet immunity for animals weighing up to 80 lbs, which helps reduce false alarms. The sensor provides a coverage range of 40 ft. x 56 ft. It is compatible with various alarm systems, including ADT, Vista 20P, Vista 15P, and DSC systems. The device is a basic, non-addressable 4-wire 12VDC sensor.