Key Function:
Press the [A] key: When paused, press briefly to reset
Long press 2S to enter the setting state
Press the [B] key: Switch to alarm mode
Press the [C] key: to start/pause the countdown
Press the [D] key: short press to light the backlight
Countdown mode
Key Function:
Press the [A] key :to exit the settings
Press the [B] key: toggle the setting item: hour--minute--second
Press the [C] key: short press the value of the setting item and add 1
Long press 2S to set the value of the item to increase quickly
Press the [D] key: Press the value of the setting item to decrease by 1
Long press 2S to set the value of the item to decrease quickly
Normal display:
Time setting Minutes setting Seconds setting
Set Status:
8
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