About this 3D model
I made this plate to allow me to install the airthings wave plus onto an unused ceiling pan box (a standard box for light fixtures) I had instead of putting another hole in the ceiling. The original mounting plate screws into this plate, retaining the magnetic attachment for easy removal/battery changes. The original screw protrudes into the box, so be mindful of that and don't use as-is if you have live wiring in the box.