Wrapper around accessing a bluetooth low energy heart rate monitor on MonoTouch based on https://github.com/timburks/iOSHeartRateMonitor which is based on http://developer.apple.com/library/mac/#samplecode/HeartRateMonitor
_monitor = new HeartRateMonitor();
_monitor.HeartRateUpdated += (object hrm, HeartRateMonitor.HeartRateEventArgs ev) =>
{
Console.WriteLine("Heartrate::" + ev.HeartRate);
};
_monitor.Connect();