Light sensitive component in PIR module


In most of the PIR modules, it is found that a light sensitive sensor is also used, I want to ask what is its function, does it mean that the PIR sensor is disabled when light is on?


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The usual application of such a dual sensor is to switch on the light when someone/something passes in front of the sensor when it is dark. So, yes, during daylight, the PIR sensor doesn't work.


Ing.Buero R.Tschaggelar -
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Rene Tschaggelar

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