Cycplus Speed/Cadence Sensor Cycling ANT+ Bluetooth 

New in box. Sensor can be toggled to measure speed or cadence.

Works with Strava, Wahoo, Xoss, Magene, Garmin, other bike computers, and smartphones.

Comes with a CR2032 battery pre-installed. Remove the back cover and the plastic film inside to get started.

Does not come with a bike computer.

Listing is for the sensor(s) only.