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Hioki
Hioki IR4051 Insulation Tester
Hioki IR4051 five-range insulation tester for installation and periodic testing.
Hioki IR4051 five-range insulation tester for installation and periodic testing. Hioki's five-range insulation tester series, and the reason it is so widely carried is the range switching: one instrument covers the test voltages needed from control wiring through to distribution, so an electrician is not choosing between two testers before leaving the van. Continuity and voltage checks are on the same dial, which means the pre-test 'is it dead' step happens with the instrument already in hand.
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