Back up camera for truck and even on a fifth wheel??

Last summer I purchased a Motorola wireless Baby monitor. The camera can pan in all Directions. I have a 41 foot sandpiper with a window in the back. I fabricated a mount to hold the camera. I wasn't sure if it would even work. we took a two week trip and it worked perfectly. I was able to see the road and if I wanted to see in the trailer I just panned the camera 180 deg. to check things out on the fly. If your trailer gets lonely it even plays lullabies.