Mike needs a wireless camera that will work on his truck from 85 feet away. Leo says he can do that with a WiFi-enabled camera acting as an access point that allows Mike to join the camera with an app to see what's back there. RearView Safety is one example. Mike will also want one that's waterproof.
Pat recently bought a fifth wheel trailer and wants to have a rear mounted camera that he can see from the cabin. He'd like to spend around $150. Leo says that cameras are cheap. The money is in how it's installed and connected. Many cameras use Wi-Fi, though, and that could cost him some extra money as well.
Dave wants to get a backup camera that has infrared and 180 degree scope. He's seen them on Amazon for $250 down to $39. Leo says that most of them are made by Chinese companies and sold to American companies. Amazon fulfills it, so it's a good idea to buy from them, and they'll stand behind them. Dave should check the reviews from Amazon and he'll see how good people think they are.
Michael needs a camera to install in his car that has radar. Leo says that it's probably best to go to a car installer about that since it's more than just buying a camera. It's not only the camera, but the screen itself. So Leo advises letting a professional handle it. The chatroom says that Garmin makes one called the BC20 that wirelessly connects to GPS devices.