This easy-to-use <em>Polar</em> FS2 <em>heart</em> <em>rate</em> <em>monitor</em> has all the features you need to get you started on the path to cardiovascular fitness. Continuously tracks <em>heart</em> <em>rate</em> and exercise time, providing your current and average <em>heart</em> <em>rate</em>. Visible and audible