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What is the role of "lux" parameter when chosing PIR(Passive/Pyroelectric InfraRed) Sensors?Please reply..... Answered

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iceng

5 years ago

Sensors often are used to turn on a light.

There is no need to do so when ambient light is already in the area.

The non-IR sensor referrers to the ambient light sensitivity

A.

Context ?
One would say sensitivity, but Lux is weighted to human visible - IR ain't,.

Whether this(lux) parameter plays important role?Does sensitivity is related to lux of PIR sensor?

Check this link..... http://www.lampfind.com/lampby_1210714_PIR-motion-detector-module.htm

Doesn't mention lux. But it DOES say the things have a CdS sensor. I wonder if the CdS sensor is what is rated in lux.