Easily mountable wireless sensor enables you to save your speed during the tour. The Speed Sensor is mounted on one of the wheel hubs. It performs a self-calibration with Edge and always provides accurate speed and distance data - even while training on the turbo trainer. The Speed Sensor is compatible with Garmin Edge 500, 510, 800, 810, 1000, Forerunner 305, 310XT, 410, 610, 620, 910XT, fēnix 2 and others.