OWIM HG00073A Instructions D'utilisation Et Consignes De Sécurité page 22

an object that transmits radio signals, it could
cause interference.
If the display indicates a problem, move
such objects away from it or remove the
batteries for a short while and then re-
place them.
Obstacles such as concrete walls can also
cause that the reception is disturbed. In this
case, change the location (eg near a window).
Please take note that the external sensor should
always be set up within max. 30 meters (open
space) from the base station. The specified
range is the free-field range and means that
no obstacle should be between the remote
sensor and the base station. A "visual contact"
between remote sensor and base station often
improves the transmission.
Cold (outdoor temperatures below 0 °C) can
reduce the battery power of the outdoor sen-
sor and thereby negatively impair the radio
transmission.
Another factor that may cause harmful inter-
ference, are dead or weak batteries in the
outdoor sensor. Replace them by new ones.
If your temperature station is not working cor-
rectly, please remove the batteries for a short
while and then replace them.
22 GB/IE