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 SCUBA DIVING MODE Compass angle---359 Diving depth in M/FT---18.8m Dive/Surface speed---10m/minutes NDL TIME--- 160 minutes Current time---5:06 Current temperature---18.8 F Altimeter & Barometer Altitude 1033 M Air pressure 1003hPa COMPASS model

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