1. Measure 4channels of active power, reactive power, combined active energy, four-quadrant reactive energy, etc .;
2. Measure 4 channels of current, voltage, active power, reactive power, apparent power, power factor, etc
3. There are two sets of tariff which can be automatically converted at the customized time, and each set supports 4 tariff and 8 periods
4. Abnormal events of the power grid can be recorded and reported actively
5. Communication function: Standard one RS485 communication interface, optional Lora, GPRS, NB-Iot, 4G
