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

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.

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.

Kipp & Zonen CMP3 Second Class Pyranometer


Hukseflux LP02 Second Class Solar Radiation sensor


Hukseflux SR11 & SR12 First Class Solar Radiation sensors


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

Eppley SPP Secondary Standard Precision Pyranometer

The ideal instrument for high quality network measurements and as a transfer standard for calibration of other pyranometers.

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