Delps8
Well-Known Member
I contacted Apogee last week with questions about the accuracy of my PAR meter. The customer service rep gave me this URL which takes you to a page that allows you to compare the PAR reading that you're getting against the output from the sun.
It's well worth the 5 minutes or so that it takes to run the test.
It's well worth the 5 minutes or so that it takes to run the test.