Review on RV Dual Digital Wireless Backup Camera Kit: 7 Inch LCD Monitor, IP69 Waterproof, Wide-Angle Cameras - No Interference, Colorless, Front & Rear View by Quintin Boner

I bought this dual camera system for a horse trailer after weeks of researching options! One installed above, facing the rear, and the other inside, facing the horses. That works great! We have a 2 stall direct loading trailer and the picture doesn't break at any speed (I've tried). If you know your way around wiring, it's very easy to install and comes with everything you need to hook up the system. It took me about 2 hours in total trying to find the best spot to set up the camera while looking at the horses. The only advice I would give to those installing this system is if you are connecting it to a permanent power source (such as a light switch in your trailer) make sure you add a toggle switch to power the system turn off. Connecting to a constant and then leaving that connected to your truck for a long time can drain the battery, but it's very easy to just add a switch between the power supply and the cameras. I highly recommend this system.