The Primal HIIT Climbmill is a light-commercial compact stair mill. Designed for PT Studios, private Gyms, Schools, Hotels and homes, the Climbmill has an electronically controlled alternator, which lets the brake and drive chain precisely control the stair speed allowing a wide range of users to exercise smoothly and use the variety of inbuilt programs. The Primal HIIT Climbmill has a step surface of 22.5cm by 42.5cm wide and has six revolving staircases 15cm deep steps. The adjustable speed allows users to comfortably hill climb or speed the steps up for an intense HIIT workout. The Climbmill comes with a large Blue LCD display console pre-programmed with over 25 motivating workout combinations, to help keep work-out routines fresh and interesting. It allows users to track activity, providing feedback including total workout time, calories burned, Watts produced and, of course, floors climbed. The Primal HIIT Climbmill has contact heart rate sensors on the handrails, and is Polar che