Detects body heat (infrared energy). Passive infrared sensors are the most widely used motion in home security systems. When your system is armed, your motion sensors are activated. Once the sensor warms up, it can detect heat and movement in the surrounding areas, creating a protective "grid."
There are two popular types of passive motion sensors. These are mostly found in residential homes. Passive infrared motion detectors (PIR) detect emitted infrared energy – given off by humans and animals in the form of heat. When there is a sudden increase in infrared energy, an alarm is sounded
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LED Sensor Lamp
The Product Adopts Microwave Sensor Mould With High-Frequency Electro-Magnetic Wave (5.8GHz) And Integrated Circuit, SMD LED. It Gathers Automatism, Convenience, Safety, Saving-Energy And Practical Functions.
IR Sensor Switch
Infrared Sensor Switch Works Based On Infrared And Motion Technology. It Automatically Turns On/Off While Detected People Come Or Out. The Main Feature Is Easy To Install Or Replace Existing Switch.