Brand New and High Quality! The 10mm open interface version is made of iron, and the 12mm open interface version is made of plastic. Please note this before purchasing. Human Body Infrared Sensor Adjustable Sensing Distance/Light Intensity/Power Small Size and High Sensitivity 160-degree monitoring range. 1) The switch adjusts day or night operation: A. In the sun position, the sensor works all day; B. In the moon position, the sensor is inactive during the day and automatically enters night mode. 2) The TIME switch adjusts the sensor's delay time (20-10 seconds to 8 minutes) The delay refers to the time after the sensor detects a person before it triggers. 3) The switch adjusts sensor sensitivity. Generally, no adjustment is needed. If the induction is too strong and the light is always on, adjust the sensitivity to minimum. Fresnel lens for efficient refraction. Flame-retardant, impact-resistant casing. Detection Range: 160 degrees Detection Distance: 6-8m (25°C) Ambient Lighting: 2-2000 Lux (adjustable) Operating Humidity: Less than 93% relative humidity Installation: Open type (10mm opening) Operating Voltage: AC85-265V Delay Time: 8 seconds - 6 minutes (adjustable) Operating Temperature: -10°C - 40°C Installation Height: 1.8m-2.5m Color: Black Material: Flame-retardant ABS Size: 75 x 42 x 52 mm Package Contents: 1 x Sensor Switch 1 x English Manual Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.