Alecto WS-2300 Mode D'emploi page 12

Power supply:
Indoor unit:
Slide down the battery cover at the rear of the unit and insert 2 AA
1.5V batteries according to the markings inside the battery compart-
ment. Slide the battery cover back onto the indoor unit.
The indoor unit will now start a 1 minute scan to search for the
outdoor unit. Therefore, you'll need to insert the batteries into the
outdoor unit within that minute.
Outdoor unit:
Slide down the battery cover at the rear of the unit, slide the CH
switch to the position '1' and insert 2 AA 1.5V batteries according to
the markings inside the battery compartment. Slide the battery cover
back onto the outdoor unit.
Weak battery warning:
As soon as the batteries of the outdoor unit become exhausted, the
symbol will illuminate on the display of the indoor unit.
Now please replace the batteries of the outdoor unit.
The indoor unit does not provide a battery warning.
Replace the batteries of this unit as soon as the display becomes dim
or weak.
Pairing the indoor unit / outdoor unit:
Automatically:
As soon as you insert the batteries into the indoor unit, the indoor unit
will start a 1 minute scan to search for the signal of the outdoor unit.
Therefore, if you insert the batteries into the outdoor unit within that
minute and the units will 'find' each other, they will be automatically
paired and the display of the indoor unit will show the temperature
transmitted by the outdoor unit.
Manually:
If the units cannot be paired automatically, or after replacing the
batteries, you can pair the outdoor unit (again) with the indoor unit as
follows:
1. use a sharp object to briefly press the RESET
button on the rear of the indoor unit
2. use a sharp object to briefly press the RESET
button on the rear of the outdoor unit
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