Features auto start/stop, auto clear and auto light control with customisable hands-free scan modes. Tri-field display lets you see three functions at once (speed, cadence, heart rate, power). Displays Trek Certified Service reminders based on your selected bicycle type. Displays distance (trip/total), time (clock, timer) and calories burned. Track your speed, heart rate, power, cadence (current, average, max). Includes sleek out-front mount and is also Blendr-compatible. Requires ANT+ compatible sensor such as DuoTrap S or Interchange Combo Sensor.