The LBQ-II Leakage Protector Tester is mainly used to test the leakage action current of leakage protectors, leakage non-action current, and leakage action time. With a 16-character LCD display, this tester is handheld, small in size, light in weight, and easy to carry. It is the best testing instrument for on-site or indoor testing of various leakage protectors.