Shelly 3EM can calculate 2-way consumption: produced and used energy for each of the three phases. The device can be configured to measure three separate points of a mono-phase electrical system and measure each of them separately.
Monitoring electricity consumption and production with Shelly 3EM and Home Assistant's Energy Dashboard :: Sequr
Shelly Pro 3EM With Switch AddOn for 240v : r/ShellyUSA
Shelly 3EM – Vesternet
Shelly Pro 3EM
Measuring kWh of a dumb EVSE using Shelly EM
Shelly 3EM - WiFi-operated 3 Phase Energy Meter and Contactor Control — ameriDroid
Can the Shelly 3em be wired on a 220v with no neutral? : r/shellycloud
Shelly 3EM
Shelly PRO 3EM (120A or 400A) - SmartHome
Shelly 3EM – Vesternet
Shelly Pro 3EM (120A), WiFi & Bluetooth 3-Phase Smart Energy Meter, 2-Way Consumption, Home Automation, Compatible with Alexa & Google Home, iOS Android App
Shelly 3EM - WiFi-operated 3 Phase Energy Meter and Contactor Control — ameriDroid