TFA 30.3006, Instruction Manual

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sets.
2. Avoid positioning the Temperature Station onto or in the immediate proximity of
metal window frames.
3. Using other electrical products such as headphones or speakers operating on
the same signal frequency (868MHz) may prevent correct signal transmission
and reception.
4. Neighbours using electrical devices operating on the 868MHz signal frequency
can also cause interference.
Note:
When the 868MHz signal is received correctly, do not re-open the battery cover of
either the transmitter or the Temperature Station, as the batteries may spring free from
the contacts and force a false reset. If this happens accidentally, all units must be reset
(see
Setting up above) otherwise transmission problems may occur.