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It is one of the most accurate ways to measure heart rate. The Transmitter will function automatically if it is worn correctly within a meter of the watch. triax c5 features The Transmitter is ergonomically designed to fit comfortably during • Adjustable target heart rate zone all types of exercise. • Simplified exercise chronograph • Data: average heart rate, time in zone, ATTENTION: Anyone beginning an exercise regimen exercise time for the first time (especially users of pacemakers or other i