I have 5 of these available. These Zwave sensors measure Temp/Humidity/Mold and are supported natively by ST. These are all in like-new condition and were lightly used for testing.
https://aeotec.com/products/aeotec-aerq-sensor/
These are currently $40 on amazon but I’ll sell all 5 for $125 and I’ll pay the shipping anywhere in the US. It’s enough to setup temperature and mold automations for most large homes.