Acrel AEW100 wireless energy meter is mainly used to measure three-phase active energy of low-voltage network. It has the functions of RS485 communication and 470MHz wireless communication, facilitating power monitoring, collection, and management. It can be flexibly installed in the distribution box to realize the measurement, statistics and analysis of sub-item electric energy of different regions and different loads.
https://www.acrel.gr/products/aew-series-wireless-energy-meter/