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You must not use scouring pads, scouring powder and solvents such as alcohol
or petrol.
Do not use any of the following substances: saltwater, insecticide, chlorine-based
or acidic solvents (ammonium chloride). Do not use spirit, thinners, etc.; you
could damage the surface of the device.
> Clean the housing using a so, damp cloth.
> Only clean the display with a so, coon cloth. If required, use a coon cloth
with small amounts of non-alkaline, diluted, water-based or alcohol-based soap
solution.
> Gently clean the surface using the coon cloth.