@Wayne-TP I note the comments from other users. I have four C425s installed, , three of which are outside and have been subjected to fairly heavy wind and rain. No problem at all. I have no idea how long the strength of the magnets will last though, but hopefully will get a few years out of these. 

That being said, the cost of producing a simple screwed base plate with the adjustable ball/socket arrangement that screws into the cameras shouldn't be too much and ought to be (at the very least) included as an item purchasable from the maker. Keeps everything neat and easy (and everyone happy).

Rubber stamp reply TP has here. Horrible exterior mounting options! Why on earth do you not have a better mounting bracket for exterior use (like your instruction recommend). Mounting security cameras on the exterior is where people mount the majority of these things. Whoever at the company thought this would be a good idea needs a reality check. People have been complaining about this for well over a year and the company has not come up with a solution other than have people purchase 3rd party mounts. Pitiful! Had I known I would have purchased another brand.

  @D2N1 

Horrible exterior mounting options! Why on earth do you not have a better mounting bracket for exterior use (like your instruction recommend). Mounting security cameras on the exterior is where people mount the majority of these things. Whoever at the company thought this would be a good idea needs a reality check. People have been complaining about this for well over a year and the company has not come up with a solution other than have people purchase 3rd party mounts. Pitiful! Had I known I would have purchased another brand.

  @D2N1 yes online it says camera bracket as well. Hoping they produce something otherwise will have to see if amazon has anything