Bryton smart magnetless bike cadence sensorthe smart magnetless bike cadence sensor from bryton is a dependable, low profile and precise cadence sensor for indoor and outdoor use. And, since it uses no magnets, this sensor is easy to setup and is virtually invisible once installed for use.the bryton smart cadence sensor applies both ant and bluetooth technology. It wirelessly transmits your cadence data to cycling computers and smart phones. With no magnets and exposed parts to line up, it is much easier to install. Dual supportfeaturing the application of dual technology, ant and bluetooth, smart cadence sensor is able to connect to both cycling computers and smart phones. It is compatible with most devices in the market. Improve yourselfdesigned to help you monitor your outdoor and indoor training. Combine it and improve your personal best or compete with other cyclists. Features wireless technology bluetooth 4.0 ant precise cadence sensor no magnets, east to install, no exposed parts compatible with cycling computers and smart phones for indoor and outdoor trainingbuy bryton accessories from chain reaction cycles, the world's largest online bike store.