Multiparameter portable pH meter contains 8 measurement modes, the meter is suitable for measuring the pH, ORP, ion concentration, conductivity, total dissolved solids (TDS), salinity, resistivity and dissolved oxygen.
Multiparameter portable pH/conductivity meter contains 4 measurement modes, the meter is suitable for measuring the pH, mV, conductivity and total dissolved solids (TDS).
Multiparameter portable pH/conductivity meter contains 6 measurement modes, the meter is suitable for measuring the pH, ORP, conductivity, total dissolved solids (TDS), salinity and resistivity.