Sigma BC 1609 STS + Cadence

Have you ever wondered how far you've gone exactly, what the temperature is or how long it took you to reach the peak of a mountain trail? Stop mentally calculating your performance values and just strap on the BC 1606 + Cadence. Oh yes, it also has an added function that allows you to track the number of revolutions of your crankset. Now, you must be wondering how such a small gadget can pack all these information.