3 range testing voltage of 250/500V (insulation resistance testing up to 100MO), and 1000V (insulation testing up to 4000MO)
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Continuity check at 3O range via 200mA testing, bright LED luminous scale, and check for live circuits and battery status
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Hioki Insulation Testers or Megohmmeters feature all-in-one designs including built-in rugged cases and test lead storage compartments. The 3490 is a 3-range, 250/500/1000V analogue insulation resistance meter with efficient functions and features to help shorten work time associated with field insulation testing.
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