说明：  1．具有‘时’、‘分’、‘秒’、‘毫秒’的数码管十进制数字显示。 2. 具有手动校时、校分的功能。 3．具有定时与闹钟功能，能在设定的时间使LED灯亮光。 4．能进行整点报时。即从59分50秒起，每隔2秒钟绿色LED灯点亮一次，连续5次，最后一次红色LED灯点亮一次，表明到达整点。 5、具有秒表功能，能显示1 秒，手动停止。 6、具有倒计时功能，显示小时、分钟、秒。
(1. With ' when' , ' points' , ' second' , ' ms' digital tube display decimal digits. (2) When a manual school, school of function. 3. With a timer and alarm clock function, can make the LED lights light at a set time. 4. Can carry the whole point timekeeping. Namely, from 59 minutes and 50 seconds, every 2 seconds the green LED lights up once, five consecutive times, the last time the red LED lights up, indicating that reaches the whole point. 5, with a stopwatch function that can display one percent second manually stopped. 6, with a countdown function, display of hours, minutes, seconds.)