Specific resistance measurement range between 0 ohm/cm to 100 megaohm/cm with EC measurement range between 0.000 microsiemens to 1000.0 millisiemens/cm TDS measurement range between 0.000 mg per liter and 400 g/liter with EC/TDS conversion factor equal to the possibility of measuring and displaying salinity in terms of PSU, ppt and %NaCl measurement range mV between 2000 mV ± 0.1 accuracy / temperature measurement range -20.0 to 120.0 degrees Celsius with a measurement range of -2.0 to 20.0 pH / -2.00 to 20.00 pH / -2.000 to 20.000 pH with accuracies of 0.1 pH / 0.01 pH / 0.001 pH