Polar Hear Rate Monitor FT60M Black w/White Display Male

Automatic age-based target zone : bpm / % * To help you train safely and effectively the training computer determines your heart rate target zone limits automatically according to your age-based maximum heart rate (220 minus age). The limits are determined either in beats per minute (bpm) as a percentage (%) of your maximum heart rate or as a heart rate reserve (% HRR). See also Maximal oxygen uptake (VO2max) and Manual target zone * Average and maximum heart rate of training * Heart rate : bpm / % * Heart rate is the measurement of the work your heart does. Heart rate can be expressed as the number of beats per minute or as percentage of your maximum heart rate. Heart rate can also be expressed as a percentage of your heart rate reserve meaning the difference between your resting heart rate and maximum heart rate (HRR = HRmax - HRrest). In Polar software or during strength training heart rate can be displayed as a graphical trend * HR-based target zones with visual and audible a