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Hey everyone. Im in the market for a new Ph meter and was wondering if anyone has any recommendations. I run a low pressure aero system with 35 gallon reservoirs and am currently using an Oakley Ph pen and it no longer calibrates correctly. What is the best meter you have used?
from Hydroponics / Aeroponics https://www.rollitup.org/t/what-ph-meter-is-everyone-using-and-what-do-you-think-of-it.1021101/