A PIR Sensor is a Passive Infrared Sensor which controls the switching on/off of the lighting load when it detects a moving target. The built in sensor turns on/off the connected lighting load when it detects motion in the coverage area. It has different working principle during the day time and the night time. During the day, the built in photocell sensor saves electricity by deactivating the lighting load connected to the sensor. During the night the connected lighting load is turned on by adjusting the luminosity knob (LUX).
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