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I bought a cheapish one, for £50, and it's gone haywire after only a few months, and not even really used. For example I know my tap water is about PH 7.4 and on first testing, and calibrating that was all good.
But now when I come to use it properly its all over the place, It can read anywhere from PH4 to PH9, despite re-calibrating it in PH7 calibration liquid, and now it's displaying what looks like an error code, so I guess it's busted, maybe I let the sensor dry out?
So I've just...
Is it just me or are PH probes a bit of a con?
But now when I come to use it properly its all over the place, It can read anywhere from PH4 to PH9, despite re-calibrating it in PH7 calibration liquid, and now it's displaying what looks like an error code, so I guess it's busted, maybe I let the sensor dry out?
So I've just...
Is it just me or are PH probes a bit of a con?
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