WattStopper® Wall Mount Occupancy Sensor, Single Relay, 120/230/277 VAC, Dual Technology (PIR/Ultrasonic) Sensor, 525 sq-ft Coverage, 180 deg Viewing, 5 to 30 min Delay, Fluorescent/Incandescent Lamp, Flying Lead, Manual On Control Output, Strap/Wall Mount, 35 deg C, White, 2.73 in L x 1.76 in W x 1.83 in H