You can set a zone alarm to beep when you are crossing your heart rate zone boundaries.You can see a visual indicator of which heart rate zone you are currently training in and your current heart rate as % of your HR max.
The zone limits can be overridden manually. The main features of the Sigma Sport PC 15 heart rate monitor are: However it has a number of additional features (indicated in bold in the list below) over and above those of Sigma Sport PC 9 heart rate monitor. The Sigma Sport PC 15 heart rate monitor is an intermediate heart rate monitor.
