Hanna Instruments Hi-991300N
RANGE METERS, PH, EC, TDS, TEMPERATURE; Conductivity Range:0µS/cm to 3999µS/cm; Resolution (ppm):1ppm; Accuracy %:-; Calibration Type:EC, pH, TDS, Temperature; External Height:152mm; External Width:58mm; External Depth:30mm; Weight:320g; Product Range:-; SVHC:No SVHC (12-Jan-2017); Conductivity:2000ppm; pH Measuring Ranges:0pH to 14pH.