Megger MTB7671/2 Instrument Test Box

Test-meter.co.uk

Megger MTB7671/2 calibration checkbox for electrical testers. Checks insulation, continuity, loop, RCD functions. Compatible with Part P certification. Tests to BS7671, BS EN 61557 standards. Confirms instrument accuracy between calibrations.

Amazon

The only one that fully tests your instruments to the regs Tests the full range of your tester’s capability not just what’s easy Won’t trip RCD protected circuits Checks insulation, continuity, loop and RCD functions of testers