Personnally speaking,their price is a little expensive.Actually you can buy a
backup camera that is easy to install.You can save on the cost of the installation if you install by yourself.
Haloview backup camera is easy to install.And the price is cheap and affordable.720P high resolution,4 IR LEDs enable night vision up to 32ft,wireless camera IP69K waterproof level,smart IR-CUT filter makes image more realistic.Maybe you can try it.