The Beurer PM90 Wrist Heart Rate Monitor calculates the calories spending and the fat burning and adapts to other functions of your personal training. The PM90 features metabolic rates as well as max heart rate and average heart rate. It comes with heart rhythm LED display that has digital signal transmission with no interference. The PM90 heart rate watchs memory can record up to 24 hours or a maximum of 50 laps in each training session. Ideal for all outdoor activities, including current altitude, metres in altitude climbed, number of descents. Accurate ECG heart rate measurement. LED display can be used to set individual training zones with alarms and even perform a personal fitness test with training. Calorie consumption (kcal), Fat Burning (g/oz). Wrist monitor. Suitable for walking; running and the gym. Ideal for cardiovascular exercise. Date and time display. Stopwatch. Alarm. Water resistant up to 50m. ECG accurate, easy to read LED LCD display. Backlight. Measures calories burned. Average and maximum training heart rate. Manual target zone - bpm. Automatic age-based target zone - bpm. Batteries required: 2 x button cell (included). Manufacturers 3 year guarantee.