Blaupunkt 5FS300SE0 Notice D'utilisation page 38

Sticker "OK"
(not all models)
The "OK" temperature monitor
can be used to determine temperatures
below +4 °C. Gradually reduce
the temperature if the sticker
does not indicate "OK".
Note
When the appliance is switched on,
it may take 12 hours until
the temperature is reached.
Correct setting
38