La Crosse Technology WS-7212U - Manual (Page 21)

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ten minutes and then check for a
temperature and humidity.
2) If this does not work please remove
the batteries from both units and
restart the system (please see
Detailed Set-up on page nine through
eleven).
Note: Please make sure when
restarting the system that all batteries
are fresh.
3) Once the system has been reset and
you have a temperature and humidity
reading from the sensor, temporarily
place the remote
temperature/humidity sensor in the
previous location.
Note: If there is an outdoor temperature
and humidity displayed when the 2 units
are close together there was either too
much distance between the 2 units
previously or some type of interference
that was causing poor reception.