Infrared Sensors FAQ

Precautions on Using

Is Pyroelectric infrared sensor influenced by sunlight and Headlights for automobiles?

Yes, it is influenced.
When sunlight, etc. shines directly on the pyroelectric infrared sensor, a sudden temperature change occurs on the surface and the pyroelectric ceramic reacts to the temperature change, and the sensitivity may be output.
For this reason, use in a location where it is not influenced by sunlight and headlights, etc. (no direct sunlight).

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