What type of controller is this . . . anyone know??
it was in the truck when i got it, never used it.

 

I think that is what they called their time based controller.

 

I have used one for the past 100,000 miles with my Airstream. It is great because it uses the input from the brake pedal for how much brake force is sent to the trailer. Another bonus is even if your truck brakes go out the tailer s will still work. In my opinion it is much better than other setups.