I looked all over for the answer to this before I purchased them! The camera module itself rotates to almost any angle within the mount, so you can easily angle it in any direction. All the pictures online depict the camera as being mounted upside down which led me to the impression it might only tilt forwards and backwards (and rely on the mount rotating to get left/right movement), but you can quite happily mount it on the side of a wall like I have here and rotate the camera so “up” is still up.
The box at the back is just a universal camera junction box from Amazon (aff)