This case lets you fix a Thermometer/Hygrometer on steel surfaces such as Printer housings or storage cabinets. The inside of the frame has a dimension of 46.3 mm x 26.3 mm. The cavity for the magnet fits a 10 x 5 mm disc magnet. It works both left and right way around. For choice of filament, I suggest PETG.
The author hasn't provided the model origin yet.