The following Shelly devices support readings for returned (negative) energy:
Gen 1:
- Shelly 3EM
- Shelly EM
Gen 2:
- Shelly Pro 1PM
- Shelly Pro 2PM
- Shelly Pro 4PM
- Shelly Pro EM-50
- Shelly Pro 3EM
- Shelly Pro 3EM 400
- Shelly Pro 3EM 3CT63
- Shelly Plus 2PM
Gen 3:
- Shelly 1PM
- Shelly 2PM
- Shelly 1PM Mini
- Shelly PM Mini
- Shelly Plug S