220V Mini Closet 23mm LED PIR Infrared Human Body Motion Sensor

 

The core features of the body sensing probe switch include automatic sensing, energy saving, environmental protection and convenience and safety. The switch is controlled automatically by detecting infrared light emitted by the human body. When the human body enters the sensing range, the switch will be automatically turned on, but when the human body leaves, the switch will be delayed for a period of time. This feature makes the human body sensor switch very suitable for public places and daily life, such as corridors, corridors, warehouses, garages, basements, toilets and other places of automatic lighting, ventilation and other uses .

The working principle of the sensor switch is based on the pyroelectric infrared sensor of the human body. The human body has a constant body temperature, about 36-37 degrees, so it emits a specific wavelength of infrared light (about 10μm). Passive infrared probes work by detecting this infrared light, and when the infrared light emitted by the human body is enhanced by the Fresnel filter, it gathers on the infrared sensor and triggers the switch action. When the human body moves within the sensing range, the switch remains on; When the human body leaves or does not move for a long time, the switch will automatically delay closing