This is a mount/stand for a generic 40mm circular hygrometer / thermometer that sits at the back of the enclosure.
I liked what papsjundi did with his hygrometer mount but had a hard time reading the display through the front glass since it's angled upward to view it through the top glass. So I made mine vertical and angled it toward the camera and added deeper plugs for extra security. I recommend printing it in PETG. 0.2 layer height, 3 walls, at least 5 top/bottom layers, & 15% infill. There's a little supports needed, but put the top z distance at 0.24 and it pops off easily.
Link to buy the hygrometers:
https://www.amazon.com/gp/product/B0885TFLZX/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&th=1