I use my W600s together with Z2M and Versatile Thermostat (VTherm).
VTherm supports external temperature sensor, but Z2M (and thus VTherm) currently only supports offset calibration for the W600 and doesn’t yet provide a separate external temperature entity (like the predecessor, the Aqara E1).
There are already some open issues, and I hope external temperature sensor support for the W600 will be added to Z2M soon:
- Aqara W600 external temperature input
- External temperature sensor support would be a fantastic addition
Please feel free to support if you can.