Simple to useequipped with the essential functions the pc 2510 is an ecg accurate digitally coded heart rate monitor with a modern sporty design the pc 2510 is an ideal training tool to help you reach your fitness goalsoptimise your fitness goalsafter entering your age gender and weight select your desired target zone the watch will automatically calculate the upper and lower limits of your heart rate zoneto boost your physical fitness use the fit zone for optimum fat burning train