Megohmmeter has a 1mA Test Current for 1000V / 500V / 250V Rated Test Voltage
Features three test ranges: 2000MΩ/1000V DC; 200MΩ/500V DC; 200MΩ/250V DC. EXTECH Insulation Tester / Megohmmeter has other modes including power lock for three-minute test, auto power-off and data hold.