COUNTERTOP CONDUCTIVIMETER; RANGE AND RESOLUTION 0.0 ΜS/CM .. 500 MS/CM; IN 5 RANGE OR AUTORANGE IN ADDITION AT 0.000 .. 1.999 ΜS/CM AND 0 .00 .. 19.99 ΜS/CM; TEMPERATURE 23 .. 221 0F (-5 .. +105 DEGREES C); SALINITY 0.0 .. 70.0; TDS: 0 … 1999 MG/L; SPECIFIC RESISTIVITY 0.000 .. 1999 MOHMCM; ACCURACY (± 1 DIGIT) ± 0.5 % OF THE VALUE; LINEAR OR NOT LINEAR TEMPERATURE COMPENSATION FOR ULTRA PURE WATER AND DRINKING WATER; WTW GMBH – INOLAB COND 720/PH; HACH; METROHM; THERMO FISHER SCIENTIFIC