UNI-T UT502A | Insulation Resistance TesterThe UNI T UT502A Insulation Resistance Tester is a higher voltage digital megohmmeter for testing insulation resistance in electrical machines, transformers, cables, switches, and power equipment. It supports 500V, 1000V, and 2500V test voltages, with insulation resistance measurement up to 20G at 2500V, making it suitable for heavier maintenance work than UT501A or UT501B. Pro Tip For high voltage insulation tests, keep test leads clear of hands and

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