ApplicationTo measure the pH (acidity or alkalinity) of a liquid. Applicable Areas chemistrylight industrymediicinedyestuff, Waterproof Pocket pH Meter FEATURESTwo-point push-button auto calibration.Measured data locking by pushing HOLD button.Automatic temperature compensation.Replaceable electrode.Auto power-off.Excellent water-proof effect. SPECIFICATIONSItem No: PHPEN20pH Range: 0.0~14. ...