About the detection distance: In the low temperature seasons such as autumn, winter and spring, the detection distance can reach 98FT. In the hot summer, high temperature will slightly affect the infrared sensor, the detection distance can reach 49FT Excellent infrared sensor: adopts industry-leading passive infrared technology, uses infrared signals to detect moving objects, does not generate a lot of heat, saves energy, and does not waste electricity Adjustable delay: adjustable delay 7sec-8sec, can be set according to user needs Wide range of applications: widely used in shops, garages, corridors, laundry rooms, stairs, basements and other places 100% satisfactory service: enjoy a smooth and hassle-free return service within one month. If you have any questions, please feel free to contact us and we will be here for you. About testing Detection width: 180 degrees. In the low temperature seasons such as autumn, winter and spring, the detection distance can reach 98FT. In the hot summer, high temperature will slightly affect the infrared sensor, and the detection distance can reach 49FT. Adjustable delay Adjustable delay 7sec-8sec, can be set according to user needs. Lux setting: lux is set to the sun mark to indicate all-day detection, and set to 3 to indicate low light sensing, which is suitable for night. application It adopts industry-leading passive infrared technology and uses infrared signals to detect moving objects without generating a lot of heat, saving energy and not wasting electricity. It can be used in shops, garages, corridors, laundry rooms, stairs, basements and other places. Including mounting screws As shown in the picture, the mounting screws are included in the package.