Monitors the speed of your ride with this wireless sensor is easy to install. With no magnets or other exposed parts to the alignment, this sensor is easy to install, store and move from one bike to another. This Sensor of the Speed of the second generation is fixed to the hub of one of the two wheels. You can configure the size of your wheels in our community onlineGarmin Connectoppure be calibrated independently with a cycle-computer Edgeo with a compatible Garmin device. Once configured, you will receive more precise data on speed and distance. The sensor stores the data of your rides, even without edge or compatible device, once connected, the data will be transferred between the two devices. Connectivity ANT+technology and BluetoothLow Energy will allow you to sync your data to Garmin Connect or other app of training, compatible devices and fitness equipment for data the more accurate the activity on the bike, indoor, and outdoor. The odometer reading detects the distance to help you plan the maintenance on the bike.