Earth Leakage Clamp Meter is widely used to check the earth leakage currents. The Clamp Meter automatically turns off whenever the meter is in idle state which helps in saving battery life. The Clamp Meter operates on a 0. 01 ma resolution. The Earth Leakage Clamp Meter functions on a range of 30 ma, 300 ma, 30 a and 300 a range.