The Cardiosport Exel Sport lets you take control of your exercise. It can show you how hard you are working, record your session, and calculate statistics.This is the ideal monitor for the serious club level and elite athlete, or the personal trainer looking to record a client's fitness. Features: Heart rate to ECG accuracy, time of day, calendar and alarm, two target zones with alarms, time and average heart rate below/in/above target zones, percentage of session below/in/above target zones, automatic or key press recordings of heart rate, 120 sample heart rate memory (up to 10hrs), automatic heart rate recovery timer, stopwatch and countdown timer, and LCD light.