Portable Multiparameter Water Quality Portable Multiparameter Water Quality System(pH-Con-Ion-DO-Temp-mV-ORP-Res-TDS-Sal)Type : M510TSpesifikasi :ParametersRangeAccuracy▪pH:-2.000 to 20.000 pH0.002 pH▪mV/ORP:-2000.00 to 2000.00 mV0.1 mV or 0.03 %▪Ion:1E-9