Air sensors

so ive got a VINDSTYRKA air quality sensor, it works great for my needs, checking the quality of the air and humidity. with winter approaching i was thinking of more sensors to monitor the rooms and connect up some dehumidifiers i got.

however when i was on aliexpress last i saw lots of difference sensors which were alot cheaper than the ikea one i got and was curious what others here are using and if there are any good recommendations as the VINDSTYRKA was also a bit of a ball ache to setup initially too

Start off here, hopefully it’ll put you on the right path.