... ,L,E,0,1,2,3,4,5,6,7,8,9 “Black”), can randomly be one among them or unit of ... ,L,E,0,1,2,3,4,5,6,7,8,9 “Black”)as displaying contents of the high digit of the ... ,L,E,0,1,2,3,4,5,6,7,8,9 “Black”)as displaying contents of low digit of the LCD ... is no operation after 1minute, it will exit automatically. 4.8 Energy saving status When there is no button pressing or ...