Connecte thermostat missing sensors


I’m new to Home Assistant and I’m trying to figure out how to automate my Connecte thermostats
The thermostat have 2 temperature sensors. One for the room, and one for the floor/external. I think I only see the one for the room.

From what I’ve figured out it seems to be missing several functions through ZHA, I found the device on this site: where it seems to be better supported through MQTT. But from what I’ve been reading it’s not exactly for the novice to change from ZHA to MQTT.

Is there anyway to get it working through ZHA?