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Function

1. Time display function

2. Alarm function

3. Countdown function

4. Stopwatch function

5. Step counting

6. Air pressure measure

7.Altitude measurement function

8. Diving function

9. Diving log (99 records)

10.Free diving Mode

11. Compass calibration function

12. Low-power reminder

13. Backlight function

14. 4 key functions

15. Use the Battery CR2450