I just installed one on my tractor for the very reason you mentioned. I hit branches with my mirrors and then I can't see the sides of the batwing mower. I mounted my camera to the top of my cab, but the field of view isn't wide enough to see past the batwing. It's only 12 feet wide, but it's not far enough behind the tractor that the camera can see all of it. Either I need a wider angle camera, or I need two cameras. I haven't mowed with it yet, so I'm not going to do anything until I have a few hours of using it.
I backed up to the mower to take the picture. I do like how much better I can see what's behind me when backing up, so maybe it's good for that?
This is what I bought. The picture is nice and clear. It was simple to install. The cable from the camera to the screen is way too long. I didn't measure it, and I didn't see how long it is on the website, but I bet it's plenty long for one of those RV buses. But it works, it's just challenging to hide all that cable.
Amazon.com: ZEROXCLUB HD Wired Backup Camera System Kit, Sharp CCD Chip, 100% Not Wash Up, IP69 Waterproof Rear View Camera + 7’’ LCD Monitor Reversing for Truck/Semi-Trailer/Box Trucks/RV (ERY01) : Electronics
www.amazon.com
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