Silvercrest Z30914 Instrucciones De Utilización Y De Seguridad página 58

Then proceed again as described in the section "Synchronising the
transmitter / receiver".
Cleaning and maintenance
Under no circumstances should you use liquids or detergents, as
these will damage the device.
The device should only be cleaned on the outside with a soft dry cloth.
Operation / Cleaning and maintenance
GB/MT 57
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