True RMS Clampmeter 2000A Measurement Calibrated. True RMS for accurate measurement when harmonics are present. Extra high capacity 2000A measurement. Measures True Power, Apparent Power, Reactive Power, Power Factor, voltage, current and frequency. Calculates total power and power factor on 3-phase, 3-wire, and 3-phase, 4-wire, and 1-phase, 3-wire circuits using stored measurement. Stores up to 4 sets of measurements for calculation on multi-phase and multi-wire circuits. Large, easy-to-read, dual 4-digit, 4000-count LCD display for high resolution. Instantly recall the calculated Power Factor. Accessories included: (1) 9V battery, test leads, carrying case. Lifetime Limited Warranty.