Hioki IR4059 Insulation Tester

Hioki IR4059 five-range insulation tester with memory for recorded test results.

Hioki IR4059 five-range insulation tester with memory for recorded test results. 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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