La Crosse Technology WS-9625U-IT - Manual (Page 54)

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3. Using other electrical products such as headphones or speakers operating on the same
signal frequency (915MHz) may prevent correct signal transmission and reception.
4. Neighbors using electrical devices operating on the 915MHz signal frequency can also
cause interference.
Note:
When the 915MHz signal is received correctly, do not re-open the battery cover of either the
sensor or Weather Station, as the batteries may spring free from the contacts and force a false
reset. Should this happen accidentally then reset all units (see Setting up above) otherwise
transmission problems may occur.
The transmission range is about 330 feet (100 m) from the sensor to the Weather Station (in
open space). However, this depends on the surrounding environment and interference levels. If
no reception is possible despite the observation of these factors, all system units have to be reset
(see Setting up).