... four quadrant active / reactive energy measurement4) Automatic voltage and current range selection.5) Three phase voltage, current, phase, frequency, active, reactive, ... Output pulse constant can be set and read9) Powerful function with the latest digital technologyTechnical index:1) Accuracy: 0 ... 5.5kgs(single range); 12kgs(wide range) MDP2000 Three-Phase Digital Reference Standard Energy Meter