Body Flex BG2000 Ski Skate Machine Heart Rate Monitor: Grip Heart Rate Monitor --Convenient way to measure your heart rate Time Readout--Shows how much time is left for your workout. Calories Burned Readout--Shows the number of calories that you have used during your workout. Heart Rate Readout--This provides a convenient way to keep track of heart rate throughout workout. Distance Readout--Helps you monitor the progress of your workout and meet your fitness goals.