Growatt Smart Meter is a one-on-one solution for grid export limitation and self-consumption monitoring. It is compatible with Growatt solar and storage inverters. With RS485 communication and direct connection to the inverter, it is cost-effective and easy to install. Growatt provides a direct connection meter and CT meter as options.
In a single inverter system, the meter is connected directly to the inverter. If your inverter has a built-in revenue grade meter (RGM; the inverter is referred to a revenue grade inverter), you can connect an external meter on the same bus as the RGM.

To learn more about this product, visit: https://en.growatt.com/products/smart-meter