[SUPER OCCUPANCY SENSOR] - 3 detectors for triple overlapping coverage to catch even small movements. [LIGHT SENSOR ADJUSTABLE] - 3LUX~2000LUX adjustable, the ceiling occupancy sensor can be adjusted to both work in day and night, or only work at night. [DELAY TIME ADJUSTABLE] - 10sec-7min adjustable, the delay time controls how long the light stays on once the ceiling motion sensor detectes motion. During the delay time if motion detected, the delay time will reset and start a delay time. [DETECTION RANGE ADJUSTABLE] - 3-12m adjustable, it can be adjusted according to your demand. The ceiling occupancy sensor both fits for small room and large room. [PIR MOTION SENSOR] - Working by detecting human movement(or heat source), the motion sensor switch is widely used on LED light, compact fluorescent lamp, incandescent lamp, ceiling light, exhaust fan... Colour: white Material: plastic Package Contents: 1 x Sensor switch