Accessories and Replacement parts designed to work with specific Polar CS Cadence Sensor which are sold separately
Part number 91028736
Compatible with Polar:
CS Cadence Sensor which works with CS100s, CS200s, CS300, CS400, CS500 CS600x, RS800cx
Easy-to-attach magnet set for an easy and quick replacement.
Polar Magnet Set for CS Cadence Sensor 91028736$8.95