I have a Hannah Checker pH tester... however... it takes a LONG time to read. It will slowly go up. I know it's not the electrode because I took it to a local Hydroponics shop and the electrode worked great on another meter. Sooo.... I was wondering if it was possible to take the electrode and some …

Hannah Ph electrode to arduino

in10ceguy May 6, 2012, 3:56pm 3

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