Features:

1. Stopwatch timing:

press the key until the stopwatch is displayed. If the stopwatch is not zero, press the B key to stop timing, press the C key to reset to zero; Press the B key to start timing, and then press the B key to stop timing. (Press the B key repeatedly to start/stop repeatedly) press the C key to reset to zero.

2. Segmented timing:

press the B key to start timing, and press the C key to record the previous period of time (note: When the stopwatch is counting the previous period of time, the inside of the table is still timing), press the C key to restore the travel time based on the accumulated time (press the C key twice for each segment), press the B key to stop, and press the C key to reset to zero.

3. Second-stage timing:

press the B key to start timing, press the C key to display the first period of time, press the B key to stop timing, press the C key to display the second period of time, and then press the C key to reset to zero.

Time and calendar. Week. Loud display:

press the key until the normal travel time is displayed, press the B key to display the month, day and week; Press the C key to display the ringing time, and press the B key and the C key to make noise at the same time: Cancel/hold.

Set time and calendar:

the seconds and weeks of normal travel flash, thus entering the time setting state. Press the B key to set the number (press and hold it, and quickly set the number) and press the C key to select the second, minute, time, day, month and week (A/R is 12-hour system, "A" represents morning; "P" represents afternoon; "H" is 24-hour system) as the adjustment object, after adjustment, press A to return to the time display status.