I have mine mounted outside, above the overhang for my garage door. For the time being at least it’s not in a case or cover. It’s mounted upside down, using the magnetic mounting disc that comes with the camera. I didn’t see the exploded view on Amazon referenced above, but it looks to me like if I were to put silicon around the gray extendible base (which is not extended) and the camera an IR sensor it would be waterproofed on both of them. Only point of entry would be the back, which faces in so unless water bounces off garage door that side should stay dry. Pic to follow later, don’t have one ATM.
These have to be putting the hurt on all the other manufacturers selling cameras for well north of $100 per pop.