Manual instrument, convenient for routine analysisCond. Range : 0 S 20 mS with 0.1 cell, 0 S 200 mS with 1 cellCond. Resolution : 0.01STDS Range :0 ppm 20 ppt with 0.1 cell, 0 ppm 200 ppt with 1 cellTDS Resolution : 0.01 ppmTemperature : 00 C 1000 C (Auto Manual)Readout : 3 digits LED