La Crosse Technology WS-9121U-IT User manual

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Contents
Language Page
________________________________________________
English 1
French 35
Spanish 71

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WIRELESS 915 MHz TEMPERATURE STATION
Instruction Manual
INTRODUCTION
Congratulations on purchasing this compact 915MHz Temperature
Station which displays time, indoor temperature and outdoor temperature
readings. With two easy to use keys, this product is ideal for use in the
home or office.

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INSTANT TRANSMISSION is the state-
of-the-art new wireless transmission
technology, exclusively designed and
developed by LA CROSSE
TECHNOLOGY. INSTANT
TRANSMISSION offers you an
immediate update (every 16 seconds!)
of all your outdoor data measured
from the transmitters: follow your
climatic variations in real-time!
This product offers:

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FEATURES
Removable
stand
LCD
Display
Function
Keys
Hanging
Hole
Battery
compartment
cover

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The Temperature Station
•Quartz clock with 12 or 24-hour time display (hour and minute,
manually set)
•Indoor and outdoor temperature reading in Fahrenheit (°F) or
Celsius (°C)
•Can receive up to three outdoor transmitters
•Wireless transmission at 915 MHz
•Signal reception intervals at 16 seconds
•Minimum and Maximum records of indoor and outdoor
temperature
•Low battery indicator
•Wall mounting or table standing (removable table stand included)

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The Outdoor Temperature Transmitter
•Remote transmission of outdoor temperature to Temperature
Station by 915 MHz transmission
•Water resistant casing
•Wall mounting and table-standing
SETTING UP:
When one transmitter is used
1. First, insert the batteries to the transmitter (see “How to install
and replace batteries in the Temperature transmitter”below).
2. Within 2 minutes of powering up the transmitter, insert the

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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

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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 915 MHz transmission however, there
should be a distance of no more than 330 feet between the final
position of the Temperature Station and the transmitter (see notes
on “Positioning” and “915 MHz Reception”).
Using Multiple Sensors with One Temperature Station
1. User shall remove all the batteries from the temperature station and
transmitters and wait 60 seconds if setting has been done with one
transmitter before.

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2. Insert the batteries to the first transmitter.
3. Within 2 minutes of powering up the first transmitter, insert the
batteries to the Temperature Station. 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.
4. The outdoor temperature from the first transmitter (channel 1)
should then be displayed on the Temperature station. Also, the
signal reception icon will be displayed. If this does not happen after
2 minutes, the batteries will need to be removed from both units

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and reset from step 1.
5. Insert the batteries to the second transmitter as soon as the
outdoor temperature readings from the first transmitter are
displayed on the temperature station.
Note: User shall insert the batteries into the second transmitter within 45
seconds of reception of the first transmitter.
6. The outdoor temperature from the second transmitter and the
"channel 2" icon should then be displayed on the Temperature
station. If this does not happen after 2 minute, the batteries will
need to be removed from all the units and reset from step 1.

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7. Insert the batteries to the third transmitter as soon as the "channel
2" icon and outdoor data are displayed on the temperature station.
Then within 2 minutes, the channel 3 outdoor data from the third
transmitter will be displayed and the channel icon will shift back to
"1" once the third transmitter is successfully received. If this is not
happen, user shall restart the setting up from step 1.
Note: User shall insert the batteries into the third transmitter within 45
seconds of reception of the second transmitter.
8. In order to ensure sufficient 915 MHz transmission however, this
should under good conditions be a distance no more than 100

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meters between the final position of the Temperature Station and
the transmitter (see notes on “Positioning” and “915 MHz
Reception”).
IMPORTANT:
•Transmission problems will arise if the setting for additional sensors
is not followed as described above. Should transmission problems
occur, it is necessary to remove the batteries from all units and
start again the set-up from step 1.
•If the signal reception is not successful on the first frequency
(915MHz) for 14 seconds, the frequency is changed to 920MHz
and the learning is tried another 14 seconds. If still not successful

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the reception is tried for 14 seconds on 910MHz. This will also be
done for re-synchronization.
HOW TO INSTALL AND REPLACE BATTERIES IN THE
TEMPERATURE STATION
The Temperature Station uses 2 x AAA, Alkaline batteries. When
batteries will need to be replaced, the low battery icon will appear on the
LCD. To install and replace the batteries, please follow the steps below:
1. Lift up the battery compartment cover.
2. Insert batteries observing the correct polarity (see marking).
3. Replace compartment cover.

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HOW TO INSTALL AND REPLACE BATTERIES IN THE
TEMPERATURE TRANSMITTER
The Temperature transmitter uses 1 x IEC CR2032, 3.0V battery. When
battery needs to be replaced, the low battery icon
will appear on the LCD of the Temperature Station-
or replace battery every 12 months. To install and
replace the batteries, please follow the steps
below:
1. Remove the battery compartment cover at
the back of the transmitter.
2. Insert the battery, observing the correct
polarity (see marking).

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3. Replace the battery cover on the unit.
Note:
In the event of changing batteries in any of the units, all units need to be
reset by following the setup procedures. This is because a random
security code is assigned by the transmitter at start-up and this code must
be received and stored by the Temperature Station in the first few
minutes of power supplying.
BATTERY CHANGE:
It is recommended to replace the batteries in all units every 12 months to
ensure optimum accuracy of these units.

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Please participate in the preservation of the
environment. Return used batteries to an authorized
depot.

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FUNCTION KEYS
Temperature Station:
The Temperature Station has two easy to use function keys.
MIN/ MAX/ + key
SET/ CH key

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SET/CH key (Setting/Channel)
•Press and hold for about 3 seconds to enter the Manual setting
mode.
•Press shortly to toggle between different channel readings.
MIN/MAX/+ key (Min/ Max temperature)
•Use to toggle between the minimum and maximum recorded
readings of indoor & outdoor temperature.
•Press and hold to reset minimum and maximum record (when min
or max record is shown).

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LCD SCREEN AND SETTINGS:
Receiver Lo
w
battery indicato
r
Outdoor Reception
Signal icon *
Transmitter Low
battery indicator
Time
Indoor
Temperature in °C
Outdoor
Temperature in °C
Outdoor Channel No.

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*When the signal from the transmitter is successfully received by the
Temperature Station, this icon will be switched on. (If not successful, the
icon will not be shown on the LCD). User can therefore easily see
whether the last reception was successful (“ON” icon) or not (“OFF” icon).
On the other hand, the short blinking of the icon shows that a reception is
being done at that time.
For a better display clarity, the LCD screen is split into 3 sections,
showing the information of time, indoor temperature and outdoor data.