ZA19E intelligent power monitor is an instrument with multiple functions. It can measure three-phase four-wire or other line sets of all phase/line voltage, current, power, energy, power factor, frequency and other parameters. It can be used as a display instrument, data acquisition instrument, power meter. It has LCD large screen liquid crystal display, Chinese subtitles, automatic zero calibration, extremely wide dynamic input range, internal real-time clock, programmable status settings and other features.