The The TreadClimber TC5000 by Nautilus represents the ultimate in TreadClimber technology for fast and easy weight loss. Fully integrated electronics, including a wireless heart rate monitor, enable you to monitor every vital aspect of your workout - and achieve maximum results. For calorie-burning effectiveness, no other piece of exercise equipment comes close to the TC5000. The TC5000 features include: integrated Wireless Heart Rate Monitor provides wireless feedback to help you stay within your optimal fat-burning zone - a TC5000 exclusive; the TreadClimber Machine Mat - a TC5000 exclusive; 12 intensity settings that make it easy to tailor your workout specifically to your fitness and comfort level - from beginner to elite athlete; adjustable speed from 0.7 to 4.0 mph - from a casual stroll up to power-walking; 8 state-of-the-art electronic functions monitor every aspect of your workout, including Speed, Time, Distance, Calories Burned, Calories-Per-Minute and Total Steps; climb I