Hi all,
I am using the Sonoff (SNZP-04) Wireless Door/Window Sensor as part of my home assistant alarm solution, and I was looking for a solution that would enable me to use just one of these for each Double Sliding Window, that would reuse the original magnet and would be a more elegant solution than just gluing it to the window…lol
Given that, I designed a minimal width magnet holder case following the same design patterns of the original one. Hope you folks find it useful. 
Here is the link to the project files: https://www.thingiverse.com/thing:4977917
