Apogee Silicon-cell Pyranometer Calibration

While Apogee recommends that silicon-cell pyranometers be recalibrated every two years, you may wish to wait longer depending on your particular requirements. For a simple method to check if recalibration of your pyranometer is necessary, visit the Clear Sky Calculator.

Calibrated sensors are returned with a calibration certificate that shows the calibration procedure, traceability, and calibration factor. View example calibration certificate >

Competitive Pricing

Calibration and cleaning        $50 + shipping
Repair cost estimated after evaluation

Quick Turnaround

Most calibrations completed within three days of arrival.

Repairs and Maintenance

Apogee can complete other repairs and maintenance. Repairs outside of the warranty period have a minimum charge of $50.


For questions, please call Apogee Tech Support at (435) 792-4700 M-F 8:00 AM – 5:00 PM MDT.

To send your sensor in for recalibration, please fill out the form below and one of our technicians will contact you with further instructions and a detailed quote. If the form does not show below, you can click here to view the RMA form >.

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If you have questions or need additional support for any of our products, please contact Apogee tech support by email at techsupport@apogeeinstruments.com

One of our support specialists will respond as soon as possible during business hours which are M-F 8AM - 5PM MST.