Review on Complete Backup Camera Kit For Large Vehicles: 4 Waterproof Cameras, Night Vision And Parking Lines - BY704A by Mike Cooper

I was skeptical of this system with it being wireless, but boy, was I surprised when I powered it up. It works extremely well. I tested the range and it never glitched at all as I walked through through the house up to 100 feet with the camera outside. I even placed the camera inside the metal trailer and it worked just as well. The picture is very clear. I was able to clearly see planes flying overhead and the moon as well. The night vision was as good as any I have seen on any camera, and I worked in the CCTV industry for 25 years. so I have seen allot of them. I plan on getting another camera to place inside the trailer so that I can see if any cargo comes loose. I would highly recommend this system.