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Troubleshooting
Heart-rate signal missing
907HR continuously tracks your heart rate while you've exercis-
ing and throughout the day, if the heart-rate sensor on your
tracker has difficulty detecting a signal, the green light on the
back of the tracker will continue to flash continously.
Next, please make sure you've wearing your watch correctly,
either by moving it higher or lower on your wrist or by tighten-
ing or loosening the wristband 907HR should be in contact
with your skin.
After holding your arm still and straight for a short time, you
should see your heart rate again.
