This compact 23mm (15/16) inductive clamp multimeters are designed to easily enclose small wires and yet are large enough to measure most large wires. You can easily measure computer memory draw, leakage currents and more with their large LCD readout. Product Features:Digital Circuit Tester w/ 23mm inductive pick-up clamp which is designed to easily enclose small wires while being large enough to measure most large wires.Fast one-touch freeze button for capturing vital information Features a Hold button that freezes the current test parameter, and is sophisticated enough to perform a complete charging system analysis.Works on AC and DC circuitsLow resolution DC amp range for easy detection of parasitic drainSmall convenient size that includes protective carrying case