Megger MFT1701 Multifunction Tester adds one to the nomenclature and vastly to the value of these testers. The range of 3 instruments are expressly for testing low voltage electrical installations to BS7671 standards. It provides all the tests required to complete the necessary electrical certification for industrial, commercial and domestic fixed wiring installations. The entry level 18th Edition tester offering CAT IV, 3 and 2-wire non trip loop testing with resistance and fault current display, frequency measurement and the largest, brightest and clearest display on the market. This now adds a 1 kV insulation test range, Auto RCD tests, 10 mA RCD, programmable (VAR) RCD, ZMAX and true RMS voltage measurement. This latest series of multifunction installation tester adds one to the nomenclature and vastly to the value of the tester. The range of instrument is expressly for testing low voltage electrical installations to BS7671. It provides all the tests required to complete the necessary electrical certification for industrial, commercial and domestic fixed wiring installations.