Meet the Aspen StairMill V3 Stair Climber: an exercise machine developed to improve your cardio, stamina, and strength without going hard on your joints. It has a max speed of 120 steps per minute but you can change the face to match your fitness level. This stair machine has an electromagnetic braking system, contact heart rate monitor, and a console to show your time, distance in floors, speed, and other data.
This exercise machine requires a minimum ceiling height of 96″. It measures 44”L x 26”W x 68”H. The bad news? Something like this doesn’t come cheap.