Meet the SunnyFit CB110 Bike Cadence & Speed Sensor: a smart sensor that combines with your iOS or Android device to help you track your cycling workouts. It has two LED lights to give you feedback. Thanks to this tool, you will able to view your data in real-time in the SunnyFit app.
The SunnyFit CB110 has a lightweight design and can be used indoors and outside. It has a waterproof rating of IP67. This sensor doesn’t require magnets for installation. Simply put it onto a rubberized mat and warp it around your bike’s crank with elastic bands.[where to get it]