Bante930 is a high accuracy meter used for measuring the ion concentration, ORP and pH values of liquids. The meter widely used in environmental studies, chemical labs, swimming pools, spas to monitor the chemical reaction of water. Features: During the pH mode, Up to 5 points push-button calibration with auto- buffer recognition. Selectable pH buffer standards and temperature units. Automatically calculates and displays electrode slope after calibration. During ORP mode, Single point offset calibration allows user adjusts displayed value to a known standard. Absolute or Relative millivolt (R.mV) measurement provides accurate ORP readings. During the ion mode, 2 to 5 points push-button calibration from low to high concentrations. Selectable multiple concentration units, including ppm, mg/L and mol/L. Direct readout ion concentration simplifies the elaborate measurement process. Automatic Temperature Compensation (ATC) ensures highly accurate measurements over the entire...