Global Radiation (Pyranometers)

Measure light in the wavelengths 400-1100nm. The most commonly used light sensor for outdoor studies.

Apogee Silicon Cell Pyranometers

For measurement of total solar irradiance
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CS320 Digital Thermopile Pyranometer

The CS320 is a digital thermopile pyranometer that measures broad-spectrum short-wave radiation and communicates over the simple SDI-12 protocol to the datalogger.
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Skye Pyranometer

For measurement of total sunlight and for use in outdoor locations. Calibrated against a WMO Secondary Standard Thermopile. Output is proportional to total solar energy in watt.m-2.
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Kipp & Zonen CMP3 Second Class Pyranometer


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Hukseflux LP02 Second Class Solar Radiation sensor


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Hukseflux SR11 & SR12 First Class Solar Radiation sensors


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Hukseflux SR20 Secondary Standard Pyranometer

For use where the highest measurement accuracy is required, secondary standard is the highest category in the ISO 9060 classification system
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Eppley SPP Secondary Standard Precision Pyranometer

The ideal instrument for high quality network measurements and as a transfer standard for calibration of other pyranometers.
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The following sensors measure total radiation. Please click the links above for more information.

  • Apogee pyranometers are good for mid-grade stations and are often used for agricultural stations for calculating evapotranspiration. Apogee also manufacture a handheld meter for portable applications.
  • CS320 and Skye pyranometers are suitable for research grade stations where solar radiation is required for background data but not the prime research variable.
  • Second Class sensors are Kipp & Zonen's CMP3 and Hukseflux's LP02 & SR03
  • First Class sensors are Kipp & Zonen's CMP6 and Hukseflux's SR11 & SR12
  • The top graded sensors are called Secondary Standard and are Hukseflux's SR20 and Eppley's SPP