La Crosse Technology WS-9014TWC Instruction Manual page 15

Note: When setting up multiple units it
is important to remove the batteries
from all existing units in operation,
then to insert batteries first into all the
remote temperature sensor units, and in
numeric sequence. Second, install
batteries into the indoor temperature
station. Transmission problems will
arise if this is not done correctly and if
the total time for set-up exceeds 6
minutes.
2.
It is necessary to remove the batteries
from all units currently in operation.
3.
Remove the battery covers to all
remote temperature sensor units.
4.
Place all remote temperature sensor
units in a numeric sequential order.
5.
In sequential order, install batteries
(follow the same battery installation
procedures seen in section "I" of the
Detailed Set-Up Guide).
6.
Install batteries into the indoor
temperature station.
15