Free 

Remix to add a handle to the lid. Had to shorten the box to accommodate the lid so you will lose some volume. Includes versions for the rectangular and round hygrometer.
Link for rectangular hygrometer: https://www.amazon.com/gp/product/B08PVQBVCT
Link for round hygrometer (from original model description): https://www.amazon.de/dp/B0BKZXFDVX
FYI: The lid slides in from the side. It does not snap in from the top.
Printing
The version without Hydrometer prints without any supports. The Hygrometer versions need some supports at the top of the cutout.












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