Professional laboratory pH meter contains both mV and relative mV measurement modes, 1000 sets of data storage, setup menu contains 17 options, accuracy: 0.002 pH.
Professional laboratory pH/ion meter contains 5 ion concentration measurement methods and a water hardness measurement mode, 1 to 5 points calibration, accuracy: 0.002 pH.
Precision benchtop pH/ion meter, 1 to 5 point calibration and selectable ion concentration units, the meter is suitable for measuring the pH, oxidation reduction potential and ion concentration.
Multi-parameter benchtop meter contains 15 optional settings and is suitable for measuring the pH, ORP, ion concentration, conductivity, TDS, salinity, resistivity and DO.