This is Prusa MK4 Z-Axis Temperature & Humidity Panel Mount. It is one of many my designs but first upload ever on Printables.com.

Plug and Play. There is no need to modify printer in any way.

Model is created with FreeCAD and exported to STL.

This mount panel fits with those 45mm x 26mm cheap square shaped china Mini Digital LCD Thermo- and Hygrometer. Example Aliexpress Link.

Font Link to Add for your print if wish.

This probably version 0.1 but for first iteration this is quite good and does it job very well.

Added also 0.4n 0.2mm MK4IS PLA bgcode and m3f file. On the panel is Photographic font written RH (as relative humidity) and C (as Celsius).

Hope you enjoy and share your thoughts.