Explanation:
A：1.Due to the small distribution of blood vessels at the wrist, the blood oxygen value is not easy to measure. In order to improve the accuracy of measurement, please wear the band to a distance away from the carpal bone.Slant tight wear band, slightly oppressive sense is better.
2. Put the arm on the desk and other stable place for measurement, with the band screen facing up.
3. Be sure to keep still and focus on measurement during the measurement process.
4. After the measurement, the measurement results will be displayed on the brand.
Note:
Factors such as arm hair, tattoo, shaking, low temperature, incorrect wearing and so on May affect the measurement results, or even lead to the failure of the value.