... , ion concentration, conductivity, resistivity, TDS, salinity, Dissolved Oxygen and Temperature Measuring Parameters: pH, mV, ion concentration, conductivity, ... resistivity, TDS, salinity, Dissolved Oxygen and Temperature Features and Applications: 1. Multi-parameter meter ... -1Reference temperature25°C, 20°Cand 18°C Dissolved Oxygen:Measuring range(0 to 40.00) mg/L( ...