Digital leakage current clamp for alternating currents. Acoustic continuity test, auto power off. Measurement of leakage currents, e.g. leakage or fault currents, current consumption of devices in the service and customer service area without interrupting the circuit, BetrSichV (BGV A3, VBG 4) and DIN VDE 0701/0702 measurements. Smallest resolution 0.01 mA