PURPOSE: To facilitate the setting operation of a timer by providing a memory counter wherein timer time can be set by an external operating member.

CONSTITUTION: The memory counter 13, wherein timer time can be set by an oprating signal of a set switch 28, is provided. A hand 6b in a hand operation desplay device is advanced every two seconds under the mode data is set in the counter 13, and the possibility of the setting of the timer 11 is announced. Then the data is written in the counter 13 by a counting signal P1 which drives the hand 6b within a preset time of the switch 28, and the reporting sound is generated 15. Therefore, the counted number during the timer preset time is clearly displayed by the operation of the hand 6b at every two seconds and by the reporting sound, and the timer can be readily set.