Polar M460 OH1 SensorThe Polar M460 has fast, stable integrated GPS which tracks your speed, distance & location alongside Polar’s Back to Start feature and a barometer to track your altitude. User selectable training views & up to 16 hours of training Compatible with Strava Live Segments, Training Peaks & Polar Flow web service and offering complete Bluetooth smart sensor support the Polar M460 is everything you need in a cycle computer 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 FeaturesIntegrated GPS, barometer and GPS based gradient and heart rate via chest sensor3rd party compatible including, Strava Training Peaks, Strava Live Segments, and 3P Power MetersComplete Bluetooth smart sensor compatibilityUser selectable training views Includes NEW H10 sensor with improved accuracy Up to 16 hours training timePolar Smart Coaching features and Polar Flow web serviceBuy Polar GPS from Chain Reaction Cycles, the World’s Largest Online Bike Store.