Ok, today I received 2 more ClearGrass Air monitors and same problem with those too, why would you guys keep it as supported hardware then? If its not supported anymore.
And it looks like there is no way to use it with an MQTT protocol either, because Homey has no normal APP for that, while it works flawless with Home Assistant. I was able to set it up to send MQTT signals, you can read about it in topic below: