Furring Vision S observation systems are attached to clearance lights making them easy to install on an existing RV, commercial truck, or trailer. The rear camera offer a 180 degree viewing angle. All cameras have night vision, motion detection, and auto wake functions for extra security when your vehicle is stationary. The observation systems are wireless and feature a 4. 3 inch high resolution touch screen display that can show up to four camera images at once. The 2. 4GZ wireless communication digitally locks to the camera system resulting in minimal interference up to 500 feet. Mounting options are customizable with choices of a windshield mount and an interior table stand so you can place the monitor in the living area or the nightstand for added convenience.