TFA 30.3029 Manual Del Usuario página 113

2. Within 30 seconds of powering up the transmitter, insert the batteries to the
Temperature Station (see "How to install and replace batteries in the
Temperature station" below). Once the batteries are in place, all segments
of the LCD will light up briefly. Following the indoor temperature and the
time as 0:00 will be displayed. If they are not shown in LCD after 60
seconds, remove the batteries and wait for at least 60 seconds before
reinserting them. Once the indoor data is displayed user may proceed to
the next step.
3. After the batteries are inserted, the Temperature Station will start receiving
data signal from the transmitter. The outdoor temperature should then be
displayed on the Temperature station. If this does not happen after 2
minutes, the batteries will need to be removed from both units and reset
from step 1.
4. In order to ensure sufficient 868 MHz transmission however, this should
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