The CARS system uses 24GHz FMCW technology to detect stationary object and people in blind spots. The radar integrated camera provide both blind spot image and audible warning to the driver to prevent accidents. It assist drivers by notifying them of other vehicle as well as obstacles they may miss. You do not have to install camera and radar respectively. Just install One housing and connect one cable from radar to radar monitor. The smallest radar integrated camera system is commercial grade as well as IP 69K waterproof rating.