SD Card Conductivity Meter TDS Salinity Concentration Meter M659D-4317SDF
SD memory function, RS-232C/USB interface, data hold, Max/Min value display function.
With SD memory function RS-232C/USB interface Data hold, Max.Min value display function CD: 20μS/200μS/2mS/20mS/200mS (only for M659D-4318SDF)
