Which CO2 Sensor?

Hi, I am looking for CO2 sensor, so I am checking out on experiences. I looked in this topic, but it is almost 1 year after the last post, so maybe something new is out there.
(Has been a while since I used my soldering iron :slight_smile: )

Just stumbled upon this thread, since I failed miserably in getting reliable values out of an ams IAQ-Core C.

Will report back once I found a good solution / came to a conclusion.