LI-COR LI-250A Light Meter

The LI-COR LI-250A handheld light meter displays the output from any LI-CO light sensor with a BNC connector.


  • Instantaneous sensor output or 15-second averages can be shown on the display
  • Calibration multipliers can be quickly entered & modified
  • Low power consumption gives you more than 150 hours of continuous operation
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The LI-COR LI-250A Light Meter is designed for applications demanding performance, reliability and ruggedness. It provides a direct digital readout of LI-COR BNC sensors. The LI-250A's low power consumption gives more than 150 hours of continuous operation from a single 9-volt transistor battery.

Measurement units for any LI-COR BNC sensor (μmol, lux, klux, or W m-2) are also displayed. Calibration multipliers can be entered by simply pressing the CAL key, setting the display units (UNITS key), then changing the sensor calibration multiplier with the up and down arrow keys.

Questions & Answers
Can I use this light meter with the LI-COR LI-192 underwater PAR sensor?
Yes, the LI-COR LI-250A light meter is designed to work with any "SA" style sensor, including the LI-192SA underwater PAR sensor. An underwater cable is also required to connect the sensor to the meter.
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