Measurement range (switching accuracy) | 5, 10, 20, 50, 100, 200, 500, 1000 mV 0.5, 1, 2, 5, 10, 20, 50, 100 V/cm ±1% (reference range: 500 mV/cm) | 1, 2, 5, 10, 20, 50, 100, 200, 500 mV 1, 2, 5, 10, 20, 50, 100, 200, 500 V/cm ±1% (reference range: 500 mV/cm) | 2.5, 5, 10, 25, 50, 100, 250, 500 mV 0.25, 0.5, 1, 2.5, 5, 10, 20, 50 V/cm ±1% (reference range: 250 mV/cm) | 0.5, 1, 2.5, 5, 10, 25, 50, 100, 250 mV 0.5, 1, 2.5, 5, 10, 25, 50, 100, 250 V/cm ±1% (reference range: 250 mV/cm) |