This website describes in detail the ten products linked from this page, answers frequently asked questions (most often: What should my meter read?), lists contact information for Solartech distributors, and provides secure SSL pages for ordering meters at list price if they can not be found at distributor.

All Solarmeters are calibrated reference NIST standards, and provide long term accurate measurements for both low and high intensity lamp systems to enable output and aging determination. They also measure solar irradiance.

As stated in the product brochures, generally lamps need replacement when their output declines 30% (falls below 70% of their new values). This may occur after anywhere from a few hundred to >1000 hours of use, depending on many and varied factors. The only way to know for sure is to monitor irradiance with a meter!

Be sure to visit all the pages on this site to learn more about each specific model and application.

Please see Evolution of Ultraviolet Meters at Solartech Inc. on the The Citizen Scientist site to learn more about Solartech.

Solarmeter® is a registered trademark of Solartech Inc.