The Megger MFT1711 is a professional-grade multifunction installation tester built for electricians carrying out BS 7671 testing and inspection work. It covers all the key tests you need on a single instrument — insulation resistance, continuity, loop impedance, RCD testing, and live voltage measurement — so you can move through an installation efficiently without swapping between tools.
The MFT1711 is straightforward to operate in the field, with clear display readouts and a robust housing that holds up to regular site use. It supports 2-wire, 3-wire, and no-trip loop testing, making it practical across a range of installation types including circuits protected by RCDs. A sensible choice for sole traders and small electrical contractors who want a dependable, capable tester at a competitive price point.