Insulation Tester, rapid 50ms testing speed, 25 to 1000V test voltage with 1V resolution, insulation resistance test: up to 9990MOhm (at 500 to 1000V), Memory / Comparator / Timer function, Built-in external I/O output

The Hioki electrical safety testers are designed for insulation resistance and voltage withstand testing of electrical devices and components according to various safety standards. The ST5520 is the fastest insulation tester in the industry, delivering pass/fail assessment in as fast as 50 ms. 25 to 1000 V test voltage with 1 V resolution.