. . Maximizes results by providing Real-Time information on the training effect of your workout. . . . . . . More than a heart rate monitor, the Suunto T3 helps you maximize results by providing real-time information on the training effect of your workout. Transending the conventional heart rate monitor, the Suunto T3 logs your workouts, tracks your physiological progress, and displays training effect - the cardiovascular benefit of your workout on a simple, one-to-five scale. Are you over or under training? Sweating hard enough to reach your goals? The Suunto T3 knows and tells all... . . . . Provides real-time training effect for every workout, on a simple one-to-five scale based off of heart rate variation. Shows heart rate, real-time average heart rate, and accurate calories burned in real time. Interference-free heart rate transmitter eliminates cross talk and electrical interference. Optional speed and distance with PODs. Optional PC-POD compatible to download workout summary from wristop to PC. . . . . . . Training Functions: . . . . . . Accurate Calories . . Training Effect in Real Time . . Speed & Distance Function with Optional PODs (Not Included) . . ANT-Digital Coded Heart Rate / Speed Signal . . Average Heart Rate in Real Time . . Heart Rate in Limit Alarm . . 3 Adjustable Heart Rate Zones . . Timers (Interval, Warm-Up, and Countdown) . . . . Memory: . . . . . . 15 Log Capacity . . Start Time and Duration of Workout . . Total Calories . . Average and Peak Heart Rate . . Up to 50 Laps in Log, with Average Heart Rate of Lap . . Time Spent Below, Above, and Inside Each Zone . . Training Effect . . Speed and Distance with Optional PODs (Not Included) . . 6 Month Workout Summary . . . . General Features and Extras: . . . . . . Time, Date, Day, & Dual Time . . 1 Daily Alarm . . User Replaceable Battery on both Watch and Heart Rate Belt . . Backlight . . PC Software Optional (Not Included) . . Change your style - Replaceable Accessory Strap