VOLTCRAFT VC-20 Bedienungsanleitung Seite 37

Do not switch the measuring instrument on immediately after it has
been taken from a cold to a warm environment. The condensation
water generated could destroy the device. Allow the device to reach
room temperature before switching it on.
Do not leave the packaging material lying around carelessly since
such materials can become dangerous toys in the hands of children.
You should also observe the safety instructions in each chapter of
these instructions.
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