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The 6549 resistance multimeter tests insulation resistance across three voltage ranges: 250V, 500V, 1000V. This unit also benefits from LCD backlight and low battery indication and comes supplied with test leads and clips, manual and batteries. Completing this multimeter is a solid and hard wearing design, and conformity to CE, EMC, LVD, ROHS alongside meeting IEC10101,CAT111 1000V.