Three-phase electronic multi-function watt-hour meter is the use of advanced special electric energy metering chip, combined with a more mature rate technology design and application of digital sampling processing technology and SMT technology, the design, manufacture, residents based on the actual power consumption with the international advanced level of electrical energy meter, can be actual data exchange through the RS485 communication interface and the upper machine, the implementation of remote meter reading, remote meter control switching function, the remote prepaid card function, greatly convenient for electricity automation management. The instrument can realize time-sharing measurement, automatic data transfer, PC programming and meter reading, LCD display and other functions. 4 kinds of rates, 10 time periods, 4 time zones and so on can be set, and with calibration output. Color: grey and white