5.You can now start warmup with your Polar Heart Rate Monitor.

Quick start: In the Time of day display, press and hold START/STOP/OK for a couple of seconds.

To stop the heart rate measurement:

Press START/STOP/OK to stop the stopwatch. If you want to QUIT the heart rate measurement mode, press SCROLL UP or SCROLL DOWN to enter the Time of day display.

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Polar M22, M21, M51, M52 user manual You can now start warmup with your Polar Heart Rate Monitor