OTC's AMP clamp/multimeter was designed to allow accurate current measurements using clamp jaws. Clamp style meter is well suited for testing starting/charging circuits and provides easy access to current, voltage, and other key automotive measurements. Tests for: Duty Cycle, Resistance, Capacitance, Diode, Continuity, Frequency, Temperature, Display maximum reading of 4000 counts. Features: range auto/manual, automatic negative polarity indication, automatic zero adjustment, over range indication, low battery symbol, data hold symbol, relative measurement symbol, auto power off. AC/DC voltage - 600V, AC/DC current - 1000A. Wide 32mm clamp opening. Kit includes test leads, temperature probe, soft carry case, and a 9-volt battery.