This is a mechanical timer,you must use the clockwork spring first!

Please read the instructions before use so as to prevent mistakes

Note: Take the timing of 5 minutes as an example

1,The initial state scale is 0

2,Turn it clockwise To 55 minutes

3,Then turn it back counter clockwise to 5 minutes,After waiting 5 minutes, the timer will sound automatically

Note: Whether you reckon the time 5 or 10 minutes,Must first twist to 55 minutes, this step is spiral spring