Amprobe ACD-14 PLUS Dual Display Digital Clamp Multimeter with Temperature Digital clamp meter measures alternating current (AC) to 600 amp, direct current (DC) voltage and AC voltage to 600 volts (V), DC and AC microcurrent to 2,000 microamp, capacitance to 3,000 microfarads, resistance to 40 megaohms, and frequency to 100 kHz Average-sensing meter provides accurate readings when measuring linear loads, where the current or voltage has a sinusoidal waveform Transformer clamp with 1" (26 mm) jaw opening measures current and frequency without touching or interrupting the circuit K-type thermocouple probe measures temperature Meets International Electrotechnical Commission (IEC) safety standard 61010 and is certified for category III installations up to 600V