The AEMC 6501 is a portable analog megohmmeter designed for insulation resistance testing, continuity checks, and safety verification. It features a hand-cranked operation that provides a stable DC voltage output across a range of measurement. The device offers insulation resistance testing up to 500 megohms at 500V, resistance testing to 500kΩ, and continuity testing up to 100Ω. With a test voltage range of 600V, it ensures safety checks to confirm full circuit discharge before testing. Its sealed generator and auto-ranging mode facilitate accurate, direct readings with an easy-to-read large logarithmic scale, suitable for acceptance testing and preventive maintenance in industrial electrical systems.