SMI 99251 Stay-IN-Play Duo Motorhome Vacuum Assisted Braking System

The Stay-IN-Play DUO is truly an improvement in towed vehicle brake systems. Simple to control, easier to use, and the smallest actuator in the industry. Duo's small operating unit is installed under the hood so you never know it is there. No messy components scattered in the towed vehicle to complicate things, just a small operating module to control the towed vehicle brakes with no physical connection to the motor home. DUO combines the power of air pressure and the gentleness of vacuum to give you the fastest most powerful self contained supplemental brake ever. Duo uses the power and speed of air pressure to activate your towed vehicle brake pedal while creating vacuum for the power brake system. These two features combine to create the only progressive and proportionate vacuum assisted system with total control. Simple on/off towing, the gentleness of vacuum, the speed and power of air pressure, dual signal activation, and reliable coach notification all combine to provide the most powerful easy to use system available today.