Poor man's solution:
https://www.amazon.com/gp/product/B08LKCLFR6/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&th=1
This thing is accurate for temp and humidity, and has a FREE app that will send you alerts if temp and/or humidity gets out of your desired range. The battery probably only lasts 6-9 months, though. And the bluetooth range is nowhere near the 260' advertised when dealing with walls, doors, closets, humidor, etc..More like 50 feet range.
Obviously doesn't humidify or circulate air, but if you just want a passive monitoring device it's great (app has a good UI, too).