Summary

Normally Honeywell Round Wireless has to be mounted to the wall with screws. Because I was not able to take it off when I used my thermostat in an other room, I made this model.

The backside of the part is flat. You can glue the backside to the wall (like I did). No screws necessary.

To download:
-Version without holes in STL
-Version without holes in SLDPRT (if you want to costumize it)
-Version with holes in STL
-Version without holes in SLDPRT (if you want to costumize it)