multifunction power meter with high accuracy measurement for single  phase and three-phase system. Measuring parameters for voltage, current, active/ reactive/apparent power and energy, power factor, and frequency etc.. Standard with RS-485 Modbus RTU communication port, front LCD display with  buttons for programming. It can display the accumulated CO2 emission for power  monitoring and management. With reliability simulation test report of MTBF over 60,000 hours. Auto wiring change (Note) (Note) via software. Large size LCD display with white back light blue words visible. The Baud rate of RS-485 communication achieves 115200 bps, and the error rate is less than 0.1%. CE and FCC approved.