Item Type: Insulation Resistance Tester. 1 Insulation Resistance Tester. Insulation Resistance: 250V:1MΩ ~200MΩ, 500V:1MΩ ~200MΩ, 1000V:10MΩ ~2000MΩ, basic accuracy: ±(4% reading ±2 words). Overload Protection: 100mA 60V self recovery fuse.
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