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6450 Solar Radiation Sensor

SKU: IOT-DA-00002

Price includes GST


The Solar Radiation Sensor – SKU 6450 accurately measures solar radiation for evapotranspiration and THSW Index calculations. Featuring a silicon photodiode for solar spectrum matching, optimized cosine response, and robust design with precision calibration, this sensor is essential for agricultural, meteorological, and solar energy research. Compatible with Vantage Pro2 Plus and optional for Vantage Pro2, it enhances environmental monitoring when integrated with WeatherLink®.

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6450 Solar Radiation Sensor

The Solar Radiation Sensor – SKU 6450 is an advanced instrument designed for precise measurement of solar radiation, which is crucial for calculating evapotranspiration (ET) rates and for assessing the Temperature/Humidity/Sun/Wind (THSW) Index. This sensor is an essential tool for agricultural, meteorological, and solar energy research, providing accurate data to support decision-making processes.

Key Features:

  • Accurate Solar Radiation Measurement: Essential for calculating ET rates and THSW Index, aiding in agricultural planning and climate studies.
  • Optimized Cosine Response: Through careful design of the diffuser element and housing, ensuring accuracy in measuring solar irradiance from different angles.
  • Silicon Photodiode Transducer: Offers a broad spectral response, closely matching the solar spectrum for precise radiation measurement.
  • Robust Design: Features a thermal radiation shield and a convection cooling airflow path, minimizing sensor heating for reliable operation.
  • Weather-tight Seal: The diffuser is welded to the body, preventing water ingress and ensuring durability in varied environmental conditions.
  • Precision Calibration: Each unit is calibrated against a secondary standard, referenced to an Eppley Precision Spectral Pyranometer for assured accuracy.


Technical Specifications:

Measurement TypeGlobal solar radiation (direct and diffuse components)
TransducerSilicon photodiode with hermetic sealing
Voltage Output0 to +2.5 VDC
HousingThermal radiation shield with convection cooling airflow
CalibrationCalibrated against secondary standard
InstallationSpring-loaded screws with level indicator for easy levelling


This sensor is compatible with the Vantage Pro2 Plus weather station and can be optionally fitted to the Vantage Pro2, offering expanded functionality for comprehensive environmental monitoring. The integration with WeatherLink® provides additional data logging and charting capabilities, enhancing the utility and applicability of the collected data for research and practical applications.

Weight0.226 kg
Dimensions5 × 7 × 5 cm


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