Megger MIT525-US Insulation Tester with Output, 10 Teraohms Resistance, 5kV Multi-Range Test Voltage Insulation resistance meter measures voltage, current, capacitance, and insulation resistance in high-voltage electrical equipment Multiranging digital meter performs timed IR, PI, DAR, DD, SV, and ramp tests Memory includes time/date stamping of results, data logging, and USB download Measures insulation resistance from 10 kilohms to 10 teraohms, voltage from 30 to 660V AC/DC, current from 0.01nA to 6mA, and capacitance from 10nF to 25 microfarads Safety rated to European Standard 61010-1 Category IV, 600V and is rated to IP65 to be dust-tight and protected against jets of water