Polar S Series Cadence Sensor

Polar Cadence Sensor S-series
Measure not only your heart rate but also the cadence of your bike with your Polar Pulse Monitor . The Polar Cadence Sensor provides wireless transmission of the cadence to all Pulse Monitors of the Polar S-Serie for cyclists and triathletes. The sensor determines the number of pedal revolutions per minute with the help of a magnet that is atached to the foot pedal.
Suitable for Polar S510, S520, S710, S720, S720i as well as the new Polar S725 and S625X Pulse Monitor.