PIR sensor senses infrared energy emits the human body within a detection area of approximately 3-7 meters. When the human body moves within the detection range at a certain field of view in sequence and then walks out of the field of view. As a result, the pyroelectric sensor senses the moving human body for a while and then does not see it, so the infrared radiation of the human body constantly changes the temperature of the pyroelectric material. Thus outputs a corresponding signal, which is the alarm signal. This sensor offers a wide range of applications in burglar alarms and automatically-activated lighting systems etc.
This Infrared Sensor Automatic Lighting Control Switch with lamp holder; convenient, safe & practical. These designed as a perfect solution for energy saving. You can conveniently let the light auto on/off. The switch can detect the human body’s infrared, and use infrared to control the load. Moreover, it features Strong anti-interference ability and easy to install. Thereby Suitable for corridor, toilet, basement and other places of automatic lighting.