This is a mount for the new Eve Weather. It can be either screwed to an appropriate place, or attached with double-sided tape.
The version on my photos has been printed on a BambuLab X1 Carbon with (nearly) standard settings for 0.16mm layer height. You'll find the presets in the attached .zip file.
I printed it with PolyTerra PLA Black. In my case, this is okay because the sensor is placed on our terrace in a protected corner. However, if your location is exposed to more severe weather conditions, I recommend using ABS.