Use the object to place an hygrometer in it and then insert the assembled unit in the cover/lid of the filament box. The battery can still be replaced in future for maintenance reasons.
The object is made to hold the following hygrometer here.
The object is made to be assembled in the cover of the following filament box here.
I printed the object in eSun PLA black with a layer height of 0.2mm on the bambu lab x1c using the generic pla profile with the filament settings derived from a manual filament calibration using orcaslicer.
The author marked this model as their own original creation.