Safety instructions
Explosion hazard! Injuries
caused by explosion or burns
through inappropriate handling of
the batteries. Do not attempt to
load, short-circuit, or disassemble
the batteries!
• Do not use rechargeable batteries!
Rechargeable batteries usually have
a higher internal resistance and often
supply lower voltages. This can result
in an incorrect estimation of battery
life, reduced service life and erroneous
battery warnings.
• Use high-quality batteries!
Varta Industrial Pro AAA, Varta Longlife
Max Power AAA, GP Super Alkaline
LR03, or Duracell Industrial AAA are
suitable. Zinc carbon batteries are not
suitable for operating FRITZ!Smart
Control 440!
• Make sure that the batteries are
inserted with the poles in the correct
position!
• Remove dead batteries from
FRITZ!Smart Control 440 as soon as
possible.
16
• Do not mix used and new batteries.
• Keep batteries away from children
and avoid contact with skin, eyes, and
mucuous membranes. Should you come
in contact with battery acid, rinse im-
mediately with clear water and consult
a doctor.
• Only use FRITZ!Smart Control 440
indoors.
• Operate FRITZ!Smart Control 440 in a
dry place that is free of dust.
• Do not expose FRITZ!Smart Control 440
to contact with liquids.
• Clean the device using a moist cloth.
• FRITZ!Smart Control 440 has mag-
nets on the back. Avoid contact with
pacemakers, magnetic stripe cards, and
magnetic data storage media.