Danfoss RET2000B-RF + RX1-S Mode D'emploi page 6

Display
The LCD displays actual room temperature until the Λ or V button
GB GB
is pressed more than once. To activate the unit's backlight press
the Λ or V button once, if no further buttons are pressed the
DE
backlight will remain on for 6 seconds.
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6
Temperature
RET2000