当触动开关时，内部扬声器发出间断的蜂鸣声，并且4个LED指示灯循环闪烁。一段时间后，LED指示灯熄灭，蜂鸣声停止。随后LED显示屏开始从9到0倒计时，若在倒计时的过程中，再次触动开关，就会发出所设计的第二种警报：内部扬声器发出持续蜂鸣声，并且4个LED指示灯共同忽明忽暗闪烁。同样持续一段时间后，LED指示灯熄灭，蜂鸣声停止。-When a switch, the internal speaker intermittent beeps, flashes and four LED lights cycle. After a certain period of time, the LED light is off, the beep stopped. Then the LED display countdown from 9 to 0 in the countdown process, once again touched the switch, we will send the second warning design: internal speakers emit a continuous beep, and four LED indicators together convulsively flashes flickered. Also continue for some time, the LED light is off, the beep stopped.