Precision 6.5 digit Multimeter. 100% drop-in 34401A compatibility, graphical views of your measurement results, long-term trends and measurement histograms for a statistical view. Control, capture and view your DMMs data on your PC. Measures noise and injected current, input bias current, AC RMS (3 Hz to 300 kHZ), DC and AC V (100 mV to 1000 V), resistance (100 ohm to 100 Mohm), frequency, period, continuity, diode (5 V), current and temperature. Using TrueVolt technology the analogue to digital convertor displays results on a clear 11cm hi-res display.