This wall mount is designed to match up to your remixed Sonoff SNZB-02 Temperature Sensor cases:
https://www.printables.com/model/826509-sonoff-temperature-sensor-snzb-02-aaa-case-remix
https://www.printables.com/model/534217-sonoff-temperature-sensor-snzb-02-aaa-case
My cases are inside a building so printing them with PLA+ was adequate.
If printed for outdoor use, you'll likely want to print with ABS or ASA.
I used paint-on supports for the mounting hole.
The author remixed this model.
I used Blender to modify the size, shape and hole location of the original model in order to fit a remixed Sonoff SNZB-02 Temperature Sensor case:
https://www.printables.com/model/534217-sonoff-temperature-sensor-snzb-02-aaa-case