Find out how fast you're travelling and peddling with wheel and crank arm magnet sensors. Spot-on data is wireless transmitted- displayed and stored directly on your MOTOACTV. Plus- you can analyze your performance on the MOTOACTV training portal.Sensor works in tandem with your bike and your MOTOACTV to provide you with precise speed and cadence data.Prevents you from receiving interfering signals from other nearby transmitters.Works with MOTOACTV and other ANT+ compatible fitness devices.Included: Speed + Cadence Sensor- Wheel Magnet- Crank Arm MagnetGet Up to SpeedMotorola Bike Speed and Cadence Sensor finds out how fast you're travelling and peddling with wheel and crank arm magnetic sensors. Spot-on data is wirelessly transmitted- displayed and stored directly on your MOTOACTV. Plus- you can analyze your performance at the MOTOACTV Training Portal. Cross-talk immunity prevents you from receiving interfering signals from other nearby transmitters.Transmit and store your perfomances by pairing with your MOTOACTV to keep track of all your workout sessions. Prevent cross-talk interference and avoid transmissions from nearby devices to stay tuned into your workout.Accessories:Speed and Cadence Sensor: Essential for measuring your cycling workouts.Wheel Magnet: Tracks your speed while you ride.Crank Arm Magnet: See your cadence and stay in sync with your workout.Warranty:1 Year Manufacturer