... salinity, Dissolved Oxygen and Temperature Measuring Parameters: pH, mV, ion concentration, conductivity, resistivity, TDS, salinity, Dissolved Oxygen and ... 2503 pH electrode, suitable for measure the weaker ionic strength, feculent and colloidal solution Technical Parameters:pH:Measuring ... 0 to 1999.9mVResolution0.1mVAccuracy±0.03% FS Ion Concentration:Measuring range0.00 to 14.00pXDisplay unitpX, ...