Need a new PH probe

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I think you mean a PH meter. The probe is either built onto the meter or connects with a BNC connector usually. I have bluelab meters and would highly recommend them. If your only looking for a BNC probe, grab the cheapest you can find. All meters and new probes will need to be calibrated monthly, at least the bluelabs will tell you it’s time to recalibrate(every month).

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