MV Range: ±2000.0mV. mV Resolution: 0.1mV. mV Accuracy: ±0.2mV or ±0.05 %, whichever is greater. pH Range: -2.000 to 20.000 pH. pH Resolution: 0.1, 0.01, 0.001 pH. pH Accuracy: ±0.002 pH. Optional stirring probe (Cat. ).