I have this camera with a magnetic mount, we use them from anything from a diesel pusher to a crane. We're often in harsh terrains and the heavy duty upgrade was a must. I can honestly say this has exceeded expectations. The quality of the picture and the durability of the camera is unlike anything I have seen before. We had an instance where a rock fell on it the other day, I thought we were going to have to buy another one but the camera wasn't phased one bit. Would recommend this camera for any large piece of equipment that might be exposed to harsh terrains or temperatures.
I live in alaska and drive a 40' diesel pusher, the temperatures and weather up here have ruined every previous back up camera I have owned, after doing research this seems to be the camera to go with. Bought it in november and it is now late may and it still works good as new, the heavy duty housing truly does seem to make a difference.