Accu-Chek Compact Plus Manuel De L'utilisateur page 49

Low brightness
(level 1 )
Press the M button to move to the next option.
The brightness of the display window changes to the setting you have
selected.
Press the S button to save the chosen setting.
The year setting comes next.
Settings
Medium brightness
(level 2 )
High brightness
(level 3 )
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