Brand new and high quality! The 10mm open version of the interface is made of iron, and the 12mm open version of the interface is made of plastic. Please pay attention to this before purchasing. Human body infrared sensor Adjustable detection distance/light intensity/power-on time. Small size and high sensitivity. 160 degree monitoring range. 1) The switch to set day or night work. A. When adjusted to the position of the sun, the sensor works all day; B. When transferred to the moon position, the sensor does not work during the day and automatically enters the working state at night. 2) The TIME switch to set the sensor delay time (20 ± 10sec ~ 8 1min) The delay time refers to the time when the sensor leaves the detection area after the sensor detects the person and the sensor delays the time. 3) The SENS switch is the sensitivity of the adjustment sensor. Generally, no adjustment is required. If the inductive induction is too strong and the light is always on, the sensitivity can be