The Hioki ST5540 Leakage Current Tester (for medical use electrical devices) is an essential part of electrical safety, providing an easy-to-operate solution for measuring leakage current in electrical devices perfectly suitable for an extensive array of applications, ranging from production lines to equipment maintenance and inspections.

The ST5540 consists of measurement networks that simulate the human body and a high-frequency volt meter, and is also capable of switching power supply polarities and making measurements under simulated single fault conditions in equipment under test.