Leakage protector tester in line with the requirements of GB16917-1997, is to test the leakage current value of the line and its electrical equipment, detection and calibration of leakage protector action current, action time. Specialized testing equipment. Leakage current and action time using liquid crystal display, compact structure, simple operation. Suitable for low-voltage power grid safety management personnel, leakage protector product production, maintenance personnel use.