Silvercrest SCHW A1 Operation And Safety Notes page 9

no fire sources (e.g.burning candles) are placed on
or near the product
no foreign objects penetrate the product
the product is never subjected to extreme
temperature fluctuations as this could result in
condensation and electrical short circuits. If the
product were subjected to extreme temperature
fluctuations, however, wait (2 hours) until the
product has reached ambient temperature before
use
the product is never subjected to excessive shocks
and vibrations
the connected cables are always laid in such a
manner that nobody can step on or trip over them.
There is a risk of injury
no objects are placed on a connected cable
and cables are not connected over sharp edges
because this could otherwise damage the
functionality of sensitive electronics.
Changes or modification to this product not expressly
approved by the party responsible for compliance
could void the user's authority to operate the product.
This product has been tested and complies with the
limits for a Class B digital device, pursuant to Part 15 of
the FCC Rules.
These limits are designed to provide reasonable
protection against harmful interference in a residential
installation. This product generates, uses and can
radiate radio frequency energy and, if not installed
and used in accordance with the instructions, may
cause harmful interference to radio communications.
US-EN 9