17
Notice for measuring the heart rate
When measuring your heart rate, wear the Smart-
Ex Watch 01 snugly on your arm above your wrist as
shown in the gure below. Do not fasten the Smart-Ex
Watch 01 too tightly.
Heart rate sensor
<Rear>
•
The accuracy of the heart rate sensor can be affec-
ted depending on the user’s movements, personal
physiology, and the measurement conditions and
surroundings. Take heart rate measurements when
you are seated and relaxed.
•
Do not look directly at the heart rate sensor’s lights.
Doing so may impair your vision.
•
If your device becomes hot to the touch, please
remove it until it cools.
Exposing skin to a hot surface of the device for a
long time may cause skin burn.
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