This is the instruction manual for a CASIO watch. The watch has sensors that can measure barometric pressure, temperature, and altitude, and the measurements are displayed on the screen. These features make the watch very useful for hiking, mountaineering, or other outdoor activities.
This manual provides detailed operating instructions for the Casio 3145 watch, including how to set the time, use the altimeter, barometer, temperature sensor, and radio‑atomic timekeeping. It also covers battery care, illumination, alarms, and user maintenance.
Key sections include power management (solar charging), sensor operation, world‑time settings, stopwatch and countdown timers, as well as troubleshooting and FAQ for common user questions. This manual is written in Chinese.