Hygrometer Insert for 4l Cereal Containers

Because I had problems with the original version of this good design (they fell out, maybe tolerances on the containers too), I took the idea and redesigned it from scratch, but added some sort of "springs" to it so it fits tighter.

I printed mine with PETG because PLA creeps under constant load and sometimes falls off.
Maybe I will try TPU too, just to be safe :-)