O During the night, the LUX adjustment knob allows you to adjust the luminosity based on which the lighting load will either switch on/off automatically.
O Once the motion is seized it switches off the lighting load.
O The lighting load remain on until it senses motion.
O Then it turns on the lighting load to which it is connected.
O The PIR Sensor senses the motion of a human body by the change in surrounding ambient temperature when a human body passes across.
Working Principle :-
O An adjustable time knob lets you select how long the light stays on after activation.
O During the night the connected lighting load is turned on by adjusting the luminosity knob (LUX).
O During the day, the built in photocell sensor saves electricity by deactivating the lighting load connected to the sensor.
O 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.
O A PIR Sensor is a Passive Infrared Sensor which controls the switching on/off of the lighting load when it detects a moving target.
PIR Sensor :