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Sizing the Heart Rate Monitor

Before your first swim, take some time sizing the heart rate monitor. It should be tight enough to stay in place when pushing off the pool wall.

  • Select a strap extender, and attach it to the elastic end of the heart rate monitor.

    The heart rate monitor comes with three extender straps to fit different chest sizes.

    TIP: The medium strap extender works for most shirt sizes (from medium to extra-large).
  • Put on the heart rate monitor backward to easily adjust the slider on the strap extender.
  • Put on the heart rate monitor forward to easily adjust the slider on the heart rate monitor.
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