1. Perform the measurement always at the same time.

2. Do not smoke or drink coffee for an hour before the measurement.

3. Perform the measurement seated and relaxed, after being 2 or 3 minutes of rest.

4. Do not measure if you have the urge to urinate.

5. Read instructions carefully before measuring uos.

 6. During measurement to keep the wrist at heart level.

7. Do not move during measurement.

 8. Do not talk during measurement.

9. Allow at least one minute between two measurements.

10. Note the values obtained in control sheet.