The new Focus 20 has simple and easy to use functions to ensure each workout is as effective as possible. Functions and Features. Heart Rate, Training Control, ECG Accurate heart rate, Electroluminescent LCD light, Hi/Lo Target Zone with audible and visual alarm, Memory of scan data for previous workout, Scan feature showing maximum, average and minimum heart rate for workout, Single and repeat countdown timer (good for interval training), Time Control, 10 hour stopwatch, Daily Alarm (plus hourly alarm option), Time of Day (Shows date and day of week when HR is off), Feedback Control, Memory of scan data for previous workout, Scan feature showing maximum, average and minimum heart rate for workout