Timex Global Trainer Bike Speed/Cadence Sensor T5K445

Timex IRONMAN GLOBAL TRAINER GPS SPEED and CADENCE SENSOR :: You're sure to pick up your pace when you can monitor your pedaling with the Timex IRONMAN Global Trainer GPS Speed and Cadence Sensor. Self-calibrating and wireless, it measures and reports your pedaling strokes per minute.

Compatible with Ironman Global Trainer Bodylink System
Includes instructions, magnets and mounting hardware
Mounts on rear half of bike on side opposite chain
Transmits cycling data with ANT+ technology