Other functions
Illuminating the display
− Press the
8 seconds.
− When the AUTOLIGHT switch is set to ON, the display light
turns on automatically at the onset of darkness. However, the
battery consumption is higher (OFF = AUTOLIGHT function
disabled).
Change temperature unit
− Press the – button to display the temperature in °Celsius or
°Fahrenheit.
Switching between summer and winter time
Switching between summer and winter time, or vice versa, takes
place automatically with good time signal reception. When
daylight saving time is active, the display shows "DST" (Daylight
Saving Time).
Resetting the radio-controlled alarm clock to
factory setting
Reset the radio-controlled alarm clock to its factory setting if the
display shows unusual or obviously incorrect values.
DCF Radio-controlled alarm clock CK 1700
button to turn on the display light for approx.
49