Extech-380396-Insulation-Measuring-Device-500-V-1-2-5-5-k V-CAT-IV-600V-EXTECH-380396-P-The-Extech-380396-220V-high-voltage-insulation-tester-provides-four-insulation-resistance-test-ranges-plus-continuity-AC-DC-voltage-polarization-index-&-dielectric-absorption-ratio-measurements-Applications-may-include-testing-insulation-in-industrial-production-systems-rotating-machines-power-supply-transformers-etc-This-meter-is-shipped-fully-tested-&-calibrated-&-with-proper-care-&-us