Power Clamp Meter

The Greenlee CMP-200 ((contact info removed)3) True-RMS AC/DC Clamp Meter, 2000A AC/DC, 600V AC/DC, is designed to measure true power (watts), apparent power (volt-amps), reactive power (volt-amps reactive) and power factor in single-phase and three-phase circuits. It also measures voltage, current and frequency. Product Features: True-RMS for accurate measurement when harmonics are present Extra high capacity 2000A measurement Measures AC/DC voltage up to 600 volts Measures True Power, Apparent Power, Reactive Power, Power Factor, and frequency Calculates total power and power factor on 3-phase, 3-wire, and 3-phase, 4-wire, and 1-phase, 3-wire circuits 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 Instant recall of calculated Power Factor values True Power: 99.99, 999.9, 1200 kW Reactive Power: 99.99, 999.9, 1200 kVAR Amperage Measurement: 499.9, 2000 A Voltage Measurement: 499.9, 600 V Frequency: 10Hz to 1000Hz Jaw Opening: 2.17 in. (55 mm) Measurement Category: CAT III, 600V My grandfather was an electrician and this belonged to him. He is no longer with us and i sure as hell don't know how to use it but what i do know is that it does work and that it is a very expensive meter