A pH meter measures a pH or the acidity/alkalinity of substances. Most pH meters rely on a glass electrode that measures the number of hydrogen ions in the solution. Usually, pH meters need to be ...

In addition to pH, ion, voltage and temperature measurement, the combined 781 pH/Ion Meter also offers an automatic stirrer control, a multi-point calibration with up to nine buffers (pH mode), a ...

To ensure accuracy, we had our garden soil’s pH levels professionally lab tested. We then used each pH meter and compared its results with the lab readings. We also evaluated for ease of use, value, ...