The watch has built-in sensors that can measure direction, air pressure, temperature, and altitude. These features make the watch useful and convenient for hiking, climbing, or other outdoor activities.
This manual provides step‑by‑step instructions for operating the Casio 3071 (B) watch, including time and date setting, world time, daylight‑saving adjustments, and sensor modes such as digital compass, barometer/thermometer, and altimeter. It also covers battery charging with solar light, power‑saving features, and safety warnings for outdoor use.
Additional sections describe how to calibrate the compass, manage alarms, use the stopwatch and countdown timer, enable or disable automatic illumination, and view recorded altitude data. The guide includes troubleshooting tips and detailed specifications for pressure, temperature, and altitude measurements. This manual is written in Chinese.
| Solar charging time in bright sunlight | ≈5 minutes |
|---|---|
| Altitude measurement range | -700 m to 10 000 m |
| Altitude display unit | 5 m (20 ft) |
| Battery level indicator – critical level | Level 5 stops all functions |
In Time mode, hold the L button for about 3 seconds to toggle the automatic illumination on or off; the A.EL indicator shows its status.