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Silicon-Cell Pyranometers

Accurate and stable total shortwave radiation measurement and global radiation measurement

Shortwave radiation drives evapotranspiration and can be harnessed as electricity. Apogee pyranometers are a cost-effective tool to quantify this energy using silicon-cell photodiode technology. Through the years, Apogee has become the industry leader by continually refining our pyranometer performance, stability, durability, and cosine response. Additionally, each sensor is backed by Apogee's excellent customer support and four-year warranty.

Apogee Instruments silicon-cell pyranometers measure incoming shortwave radiation in agricultural, ecological, and hydrological weather networks, and solar panel arrays. They are widely installed on weather stations including Campbell Scientific, Columbia Weather Systems, and more.
  Rugged Design
Apogee pyranometers feature a fully epoxy-potted head making the sensor weatherproof and eliminating thermal based accuracy fluctuations. Each sensor design is subjected to unprecedented extreme accelerated aging tests to ensure long-term performance in the harshest environments.
Read about our accelerated aging tests in detail here.
Pyranometer from Apogee Instruments
Sensors feature high-quality, silicon-cell photodiode sensors pre-calibrated in controlled conditions traceable to ISO class reference standards, with an uncertainty of ±5% under clear sky conditions.
  Self-cleaning Head
The patented dome-shape head quickly sheds water, dirt, and other debris, reducing maintenance and maximizing performance in the field.
Sensors come in several outputs that are readily compatible with most dataloggers or can be used with an attached handheld meter.
  Excellent Cosine Response
Sensors measure total solar radiation with a cosine response within ±5%.
Warranty and Support
All Apogee products are backed by an industry-leading four year warranty and outstanding customer support.


Additional Information
Applications  Pyranometer Applications / Apogee Featured Projects Technical information Apogee Instruments Pyranometer Technical Information
Instructions Using Your Apogee Instruments Pyranometer Owner’s Manuals Spec Sheets:SP Series Sensors, MP Series Meters
Owner's Manuals:
SP-110, SP-212 & 215, SP-214, SP-230, MP Series


Application Information
1. Reference Pyranometer Traceability and Recalibrations
2. Amplified Sensors Explained
3. Apogee Meter Tips and Troubleshooting
4. When to Recalibrate: Clear Sky Calculator
5. Using the Clear Sky Calculator
6. Sample datalogger programs
Visit our knowledge base for more information



Using Your Pyranometer




Video Overview