LI-210R

Photometric Sensor

The LI-210R Photometric Sensor measures light with the same sensitivity as a typical human eye. The photometric sensor is ideal for evaluating illumination in work areas, exhibits, interior lighting, and in public spaces. Measurement units are lux or klux.

  • Spectral response closely matches the CIE Standard observer Curve
  • Excellent cosine response—sensitive to light from all directions up to an 82° angle of incidence
  • Detachable sensor simplifies installation and removal, making it ideal for platforms with complex cabling

How does it work?

The LI-210R measures light with a precision filtered silicon photodiode that is sensitive to light in the visible spectrum.

Photometric Response Diagram

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