High pressure compass thermometer computer watch

the selling point is to use ZH-L16C decompression algorithm

waterproof 100 m, diving water depth 50 m

features:
1. Time display function, display hour, minute, second, month, day, week, 12/24h, initial value is (12:00, SA 1-1 ) 2. Alarm function
3. Countdown function, initial value is (0:00.00, 12:00(0FF)
4. The function of the stopwatch. The initial value is (0:00'00 0, (0FF)
5. Step counting, exercise time, pace, mileage, and calorie calculation
6. Altitude, relative altitude
7. Check the air pressure change curve, air pressure and air pressure curve (24h)
8. Exercise time record, check the relative height of motion
9. Diving function, one is water lung diving, the other is free diving. Scuba diving with NDL time, deep diving, water
temperature, diving speed
10. Diving records can store 99
11. Compass correction function
12. Low power reminder function
13. Backlight function (in diving, the backlight is always on)
14.4 button functions
15. Use a battery CR2450