... impedance,Auto,wide range,high reliability, Digital MillivoltmeterDF1945 4 1/2 Millivoltmeters,Intelligent,High speed,High accuracy,High impedance,Auto ... .05%±51mV10MΩ,30pF200V±0.05%±510mV10MΩ,30pF800V±0.1%±5100mV10MΩ,30pF2.ACV MAX Input:600VACRangeAccuracyResolutionInput impedance40Hz~1kHz1kHz~ ... 0.6%±20±1%±20100uV1000MΩ20V±0.8%±20±1.2%±20±2%±201mV10MΩ,30pF200V±0.8%±20±1.2%±20±2%±2010mV10MΩ,30pF800V±0 ...