Review on Handheld Pyranometer Measurement Radiation Insolation by Brian Samaiyar

I bought this on the advice of a "biohacker blogger" to test emission from photobiomodulation devices. While they don't have to be entirely accurate, they do provide a very useful result given the price you're paying and the conditions due to various factors to consider when testing. They are definitely recommended for the purpose described. Also, when I had an issue with my device, I received a very quick response from customer support and a few extra steps to ensure the issue was resolved. I recommend both products. and companies.