The Pro93 True RMS AC Leakage Clamp Multimeter is perfect for 2-Wire troubleshooting. The Pro93 measures AC amp current leakage to a resolution of 10 micro-amps simply by using the integrated clamp over the cable in question. In addition, VAC, VDC, Ohms, and HZ measurements are available. All utilize a built-in auto ranging function for easy use. The Pro93 makes diagnosing cable faults in 2-Wire systems simple and easy to perform.