Polar M460 OH1 SensorA fantastic bundle of Polar goodies. Get the M460 cycling computer and the OH1 heart rate sensor and combine the two to get the ultimate in cycling metrics to improve your ride M460A well-renowned cycling computer with a large range of features to boost your riding to the next level. Using Strava Segments via the M460 you can receive alerts when you approach one of your starred Strava segments, it gives you real-time data on your performance and shows results after you finish a segment, it tracks your speed, distance, altitude and gradient. The computer comes with in-built GPS and a barometer for weather alerts. The device has an easy-to-use, simple design with easy to use buttons around the sides OH1 SensorThe OH1 is a heart rate sensor that you wear, unlike other heart rate monitors, comfortably round the top of your arm. The sensor syncs to your M460, to your phone, or other Bluetooth compatible devices to help you track your heart rate – your heart rate being one of the most integral metrics to show your performance level FeaturesM460 display size: 34 65 x 34 65mmM460 battery life: up to 70hrsOH1 battery life: up to 12hrsUltra-durable designsBuy Polar Cycling Computers from Chain Reaction Cycles, the World’s Largest Online Bike Store.