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Old January 27, 2020   #17
Join Date: May 2009
Location: Madison, OH, zone 6
Posts: 264

I have used the Sonkir brand 3 in one meters for measuring moisture only, in my grow bags for 5 years now and have found the moisture measurement to be pretty consistent. As far as the 2 other measurements go I can say the PH measurement is useless. And I never checked the light measurement at all. If you use it to check moisture only, it works pretty well. I have a much more expensive meter for checking the PH of my nutrient mix.

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