The wireless sensor connection is fast, accurate and stable, you can use it wherever you were.
With the low energy technology, the speed sensor's work time is about 400 hours.
Excellent waterproof performance, you can enjoy your cycling fully and don't worry about cycling sensors getting wet.
With the interface of the bluetooth, the speed sensor is easy for you to connect and use.
The sensor is easy to install, maintain and move between the bikes, you can use it at ease.
Battery: 2032 Button Battery.
Wireless Interface: Bluetooth / ant+.
Battery lift:400 hour.
Material: Show as picture.
1* Speed Sensor.
how to use