Runners & Joggers Cycling Spinning & Aerobics Classes Weight Loss Programme Fitness Training GT1 Functions & Features Digital & coded wireless transmission. No cross talk from other monitors. Time (12/24-hour) with daily & hourly alarm plus calendar Large easy to read display from any angle Very simple to use with single button target Zone setting feature Percentage of maximum HR displayed with heart rate during exercise Audible & visual training zone indicator Target zone with Hi Lo setting in single beat increments Scan function with hands-free auto-scroll feature showing: Exercise duration in hours, minutes & seconds Maximum heart rate for session Average heart rate for session Minimum heart rate for session Memory recall of last exercise session statistics, automatically resets when new session started Blue Electro luminescent screen light Summary of Key Features GT1 uses the safe 122 k Hz. low frequency digital transmission system with enhanced signal interference & coding to allow exercise in close proximity to other monitors.