Spool cover with hygrometer

I created a version of the filament spool cover with a built-in hygrometer that will allow you to constantly monitor humidity and temperature values.The hygrometer housing hole may be a little narrow, but I preferred to leave it like this to minimize contamination with the atmosphere outside the cover. You can always widen it in post-production with a deburr. To improve the airtightness, I added a small TPU gasket placed between the hygrometer flange and the cover surface. In my opinion, the final result is satisfactory, however if you think this solution is not very effective you can seal everything with a small layer of silicone sealant.Among the print files you will also find a key that will help you unscrew the half-shell with integrated hygrometer which obviously will no longer have a handle, if you think you don't need it, obviously don't print it.The new half-shell is perfectly compatible with the previous version so you can decide to print only the one to update your sp