UNI-T UT513A Insulation Resistance Tester Megohmmeter Voltmeter 5000V 1000G&Omega; With USB Interface Insulation Resistance Tester Megohmmeter Voltmeter 5000V 1000G w/USB Interface Test Voltages: 500V/1000V/2500V/5000V DC Voltage (V): 600V (2%+3) AC Voltage (V): 600V (2%+3) High Voltage Indication Analogue Bar Graph: 30