Leviton ODC0S-I1W Self-Contained Ceiling-Mount Occupancy Sensor and Switching Relay, 1000-Watt, 120-Volt 360 degrees field of view with approximately 530 sq. ft. of coverage when mounted at 8 ft. Iindoor use only Adjustable Delayed OFF time setting between 20 seconds and 15 minutes allows custom adjustment for maximum savings. LED indicator light flashes when sensor detects motion, to verify power placement and function of sensor at installation. Segmented Fresnel lens contains 79 segments for optimum sensitivity and detection performance. Operating temperature 32-122 Degrees F. Leviton offers a wide selection of motion sensors that use passive infrared, ultrasonic or a combined multi-sensing technology.