Polar CS100 Cyclocomputer/Heart Rate Monitor

"Complete heart rate and cycling data on one display, Polar does it again! Innovative features that make sense for cyclists, like Estimated Time of Arrival, just set your distance and this computer will tell you how long before you get there. It?s packed full of Polar?s signature heart rate functions like, OwnCal OwnZone, along with the usual compliment performance tracking functions and cycling features. "