Add-a-Brake Portable Supplemental Braking System

Adjust braking pressure by the weight of the towed vehicle or your preference. Add-a-Brake is activated by the motorhome???s brake lights???when the motorhome brake lights are on, so is Add-a-Brake.Activates only when motorhome brake lights illuminate??? no false brakingVariable pressure settings for individual vehicle applicationsConnects and disconnects in secondsFast recovery???high volume air compressor is ready for the next stop nearlytwice