Diggro S2 Manual Del Usuario página 7

In the heart rate detection mode, the watch's battery life will
be shortened.To exit the heart rate detection mode, long press
the button for 3 seconds in the heart rate detection mode.
4.1 Please put on your watch on your wrist, 2cm from the
inside of your ulnaradius joint.
4.2 When measuring your heart rate,keep the heart rate
sensor clung to your skin and in good contact.Otherwise, the
light of the sensor may leak and the measurement data may
be incorrect.Do not look directly at the green light of the sensor,
which may cause discomfort to your eyes.
4.3 Though this watch can detect your real-time heart rate
dynamically, you are still recommended to keep still during
heart rate detection. Otherwise, it may take a longer time to
measure the heart rate or you may get incorrect data. After
the watch has measured the data, you can do exercise again
and view the dynamic data.
4.4 If great difference exists between measurements, please
have a rest and make another measurement. If you make 5
successive measurements and take their average value,you
will get a correct result.
4.5 This watch measures your heart rate dynamically. Thus,
it gives different heart rate values when you are in different
states (talking, eating, and drinking). The real heart rate value
depends on the actual situation.
4.6 After connecting your watch to the APP, you can set the
maximum heart rate warning value and synchronize it to your
watch. Then, when the heart rate value on your watch reaches
the maximum heart rate value, your watch will vibrate to give a
prompt and at the same time, the heart rate value will flash,
telling you to stop intensive exercise.
4.7 If you are not clear of your maximum or minimum heart
rate, please consult your doctor before taking exercise.
4.8 Before making a measurement, ensure that there is no
contamination at the bottom of the heart rate sensor. Such
factors as skin color, thick hair, tattoo, and scar may affect the
detection result.
4.9 This heart rate detector works according to the PPG
measurement principle. Therefore, its precision may vary with
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