The Metrel MI 3100S is a multifunctional installation tester that will perform the required safety tests in accordance with BS 7671 17th Edition. The MI 3100 S enables on-line voltage monitoring, phase sequence testing and earth resistance measurement, and is equipped with the integrated characteristics of fuses and RCD tables for PASS / FAIL evaluation of loop test results. * Fast, accurate and easy to use * Help screens for referencing on site * Fuse tables for automatic evaluation of the line/loop impedance result * Ready for automatic R1 + R2 testing * Powered by 9V power supply (included) or 6x AA For full details please see the datasheet. https://elecena.pl/product/27212651/metrel-mi3100-s-installation-tester 2024-11-10 https://elecena.pl/product/27212651/metrel-mi3100-s-installation-tester 2026-05-22