Gossen-Metrawatt-M712C-MINITEST-Base-VDE-Tester-Gossen-Metrawatt-M712C-The-Gossen-Metrawatt-M712C-MINITEST-Base-tester-is-intended-for-testing-&-measuring-repaired-or-modified-devices-for-electrical-safety-per-DIN-VDE-0701-0702-200-Specifically-it-tests-protective-conductor-resistance-insulation-resistance-protective-conductor-current-using-the-differential-current-method-&-contact-current-using-the-direct-measurement-method-signalling-when-thresholds-have-been-exceeded-with-colour-