Designed for treadmills and stationary bikes This electronic meter is tailored for use with both treadmills and stationary bikes, making it an essential addition to any fitness routine. Informative LED display The 53x25 mm LED display provides real time readouts of time spent exercising, frequency of workouts, and calories burned, allowing you to monitor progress at a glance. Heart rate functionality The black variant includes heart rate monitoring to help keep your workouts safe and effective by letting you monitor your heart rate during sessions. Use scenarios Home treadmill session: Attach the meter to your treadmill to track time, calories burned, and how often you work out, helping you stay consistent with your cardio routine. Stationary bike workout: Use during cycling to monitor duration and energy expenditure, enabling you to pace yourself across steady or interval rides. Interval or cardio training: While performing interval workouts, rely on the display to observe time and calories while, on the black variant, monitoring heart rate to maintain the desired intensity.