pH meter cheaper

pocket ph meter

Pocket PH Meter, H-Series ISFET pH meter:
Used in our chemistry station, this pH meter would be an upgrade from what we have now. It is waterproof and contains no glass parts, so is more durable than our current models of pH meters. It has a replaceable reference electrode and allows a single point calibration. 15-mL dropper bottle of pH 7 buffer included. Item #H130.
$199

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