Yada Reversing Camera
Price: £129.99, Sensors/visual: N/A/camera and monitor
Camera was easy to fit on a bracket which slotted behind the reg plate, with no need for front-to-rear wiring, as the signal was transmitted wirelessly. You can power the 3.5-inch monitor via the 12V socket or wire it in, and there was an AV input, and outputs for headphones and iPod charging. Plus, the clear colour image switched automatically to mono after dark.