Silvercrest SWE 100 B1 - Manual (Page 11)

Multi-Band Tuner SWE 100 B1
English - 9
especially never be immersed (do not place any recipients containing
liquids such as beverages, vases, etc. onto or next to the device);
 the device is never placed in the immediate vicinity of magnetic fields
(e.g. loudspeakers);
 no fire sources (e.g. burning candles) are placed on or near the
device;
 no foreign bodies are introduced into the device;
 the device is not subject to any great temperature changes as this may
cause moisture through condensation and short-circuit;
 the device is not subject to excessive shocks and vibrations;
 the device or an optional mains power adapter is not used during
thunder and lightning storms and unplug the mains power adapter
from the mains;