Because of the danger, which is the leakage current, many standards specify the methods of its testing, the work of testing facilities, limits of the leakage current and other to it relating factors. The table TESTER OF CURRENT LEAK MODEL 3156 can independently, without any auxiliary equipment, carry out the tests, which correspond to standards for the wide spectrum of equipment, from the electrical equipment of the general purpose to the medical electrical equipment. This model has also functions and interface, the supporting built-in test lines.