COUNTDOWN ALARM MODE The countdown timer can be set within a range of 1 second to 24 hours. When the countdown reaches zero, an alarm sounds for 10 seconds or until you press any button. Minutes Seconds Mode indicator 1.Hold down ® while in the Countdown Alarm Mode until the hour digits start to flash on the display. The hour digits flash because they are selected. 2.Press © to change the selection in the following sequence. 3.Press @ to increase the selected number or ® to decrease it.