Polar's CS100 is just what recreational cyclists asked for! The CS100 puts Polar's famed heart-rate measurement together with a host of cyclo-computer features. The heart-rate monitor features maximum and average heart rate to help you make the most of every training and riding session. You can keep track of distance as well as the maximum and average speed of your two-wheeled fun. The CS100 even includes top-notch features such as auto start and stop so you can focus on riding, not programming your computer.
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It worked fine for about 9 months. Then the battery failed. After having replaced both the computer battery AND the HR Strap Battery device is only intermittently reliable, or not at all when it comes to measuring HR.