The Tekonsha Primus IQ Proportional Electric Trailer Brake Controller gives you dependable braking power in a compact design. As an industry staple for more than ten years, this electronic brake controller kit provides a smooth braking response in any stopping situation. With its petite yet durable exterior, this electric brake controller fits nicely under the dash, making it easily accessible from the driver?s seat without being in the way. This insightful digital trailer brake controller has an easy-to-read LED display, self-diagnostic check to monitor your connection and trailer braking activity and is self-leveling when mounted within a 90-degree vertical range, so there?s no need to adjust the unit once it?s installed. The electric trailer brake controller also features a power output knob to set your desired braking power, a boost option that lets you apply up quickly and easily to three levels of additional trailer braking power, especially when hauling heavier loads, and manual override. The Primus IQ electric brake controller for trailer was created to work with electric braking systems, works proportionally in reverse to make backing into tough spots a bit easier, and - like the Prodigy P3, Prodigy P2, and many other Tekonsha brake controllers, utilizes primary sensor technology to ensure the smoothest stop possible. When you?re done towing, the IQ?s snap-in dash mounting clip, Plug Play port for two plug adapters, and removeable electrical connector allow the unit to be quickly stored. The Primus IQ brake controller works with trailers with 1-3 axles, comes with all necessary mounting hardware, and is backed by a limited lifetime warranty. Utilizes PlugNPlay port for 2plug adapters.Fit Type Universal Fit Selfdiagnostics features will illuminate LED readout when issues occur Requires Tconnector to connect to vehicle sold separately Works proportionally in reverse Snapin dash mounting clip and hardware included Digital LED readout. Includes a Boost feature. Finish Grey