The Wahoo TRACKR SPEED sensor is the sleek, magnet-less solution for capturing cycling speed data. It easily mounts to your bike's front wheel hub, and the Bluetooth Smart and ANT+ dual band technology allows you to connect to and display data on both smartphones and bike computers. Tracking speed data has never been this easy. Replaceable Battery No charging required! Operates on a coin cell battery for up to 200 hours of use. Dual Band Technology Both ANT+ and Bluetooth Smart allow for a wireless connection to both smartphones and bike computers. Universal Fit TRACKR SPEED will fit with most hub sizes. Visible Connection Two LED lights show the sensor's device connection (blue) and speed detection (red). Tech Specs Part Number: WFTRACKRSPD1 Physical Dimensions: W: 3.5cm x H: 3.2cm x D: 1.8cm W: 1.4in x H: 1.3in x D: 0.7in Weight: 13 grams (0.5 oz) Battery: CR2032 Battery Life: Up to 200 hours Water Rating: IPX7 (submersion up to 1 meter for 30 minutes) Maximum Hub Diameter: 40mm Note: Speed Sensor is NOT compatible with spin bikes
