Growatt SM-US-200 Smart MeterGrowatt SM US 200 Smart Meter The Growatt Smart Meter offers a tailored solution for managing grid export limitations and monitoring self consumption. It works seamlessly with Growatt solar and storage inverters, featuring RS485 communication for direct connection to the inverter. This makes it both cost effective and easy to install. Growatt provides options for a direct connection meter and a CT meter. ANSI C12. 20,Class 1. 0 With 2 CTs Supports