KKmoon HD HDT20B Insulation Resistance Tester Meter Megohmmeter Voltmeter 2500V With LCD Backlight Insluation Rseistance Tester Meter Earth Tester Megohmmeter Voltmeter 2500V w/ LCD Backlight Test Voltage: 500V/1000V/2500V Resistance Range: 10M19.99G Min Resolution: 1 M AC Voltage: 1-750V