CatEye Magnetless Speed Sensor Description: The CatEye Magnetless Spd-30 Speed Sensor is a hub-mounted sensor with an integrated accelerometer so you can get the most out of your CatEye cycling computers. Features: Quick pairing with CatEye Cycling app (Bluetooth) Dual band Bluetooth and ANT+ sensor with integrated accelerometer Waterproof IPX7 Compatibility: Compatible Models: Padrone Digital, Padrone Smart+, Padrone Smart and Strada Smart Connectivity: Bluetooth/ANT+ Note: For Padrone Smart and Strada Smart computers, sensor works in Mirror Mode only