A pH meter is an instrument used to measure acidity or alkalinity of a solution - also know as pH. pH is the unit of measure that describes the degree of acidity or alkalinity. It is measured on a scale of 0 to 14.
Benchtop pH meters are usually ideal for laboratory, industrial, and manufacturing applications.
pH machine PH-2603
mV: 0~ ±1999mV
1 or 2point
DC9V/200mA or Rechargeable battery
5~60°C,RH≤95%(Without magnetic interference around the meter & conspicuous centrum)
Very precise measurements necessitate that the pH meter is calibrated before each measurement. More typically calibration is performed once per day of operation. Calibration is needed because the glass electrode does not give reproducible electrostatic potentials over longer periods of time.
Consistent with principles of good laboratory practice, calibration is performed with at least two standard buffer solutions that span the range of pH values to be measured. For general purposes, buffers at pH 4.00 and pH 10.00 are suitable.