
Monitor your pedaling speed with this easy-to-install wireless sensor.
The speed sensor connects to the hub of one of your wheels and automatically calibrates itself with your Edge® to give you accurate speed and distance data at all times, even indoors on the bike simulator.
Simply connect the sensor and go. With no magnets or ALTRA exposed parts for alignment, this sensor is easy to install, store and move from bike to bike.
Waterproof up to 1 ATM ; ANT + wireless connectivity does not work underwater.