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LI-210R Photometric Sensor

Updated:2025-03-13

Brand: LI-COR
Model: LI-210R
Description: 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,
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Product Details

LI-210R Photometric Sensor Description：

Brochure

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.

Character

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

Working Principle

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

LI-210R Photometric Sensor Specifications：

Absolute Calibration	± 5% traceable to the U.S. National Institute of Standards and Technology (NIST)
Sensitivity	Typically 30 μA per 100 klux
Linearity	Maximum deviation of 1% up to 100 klux
Response Time	Less than 1 μs (2 m cable terminated into a 604 Ohm load)
Temperature Dependence	± 0.15% per °C maximum
Cosine Correction	Cosine corrected up to 82° angle of incidence
Azimuth	< ± 1% error over 360° at 45° elevation
Tilt	No error induced from orientation
Operating Temperature Range	?40 °C to 65 °C
Relative Humidity Range	0% to 100% RH, Non-Condensing
Detector	High stability silicon photovoltaic detector (blue enhanced)
Sensor Housing	Weatherproof anodized aluminum housing with acrylic diffuser and stainless steel hardware; O-ring seal on the sensor base
Size	2.36 cm Diameter × 3.63 cm (0.93” × 1.43”)
Weight	24 g head; 60 g base/cable (2 m) with screws
Cable Length	2 m, 5 m, 15 m, 50 m (6.5’, 16.4’, 49.2’, 164’)