La Crosse Technology WS-9124TWC-IT User manual

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Contents
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WIRELESS 915 MHz TEMPERATURE STATION
Instruction Manual
INTRODUCTION:
Congratulations on purchasing this compact 915MHz Wireless
Temperature Station which displays time, indoor temperature,
outdoor temperature and indoor humidity readings. With two easy to
use keys, this product is ideal for use in the home or office.
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:
The Temperature Station
•Quartz clock in 12 or 24-hour time display (hour and minute,
manually set)
•Indoor and outdoor temperature reading in Fahrenheit (°F) or
Celsius (°C)
•Indoor humidity reading in %RH
•Wireless transmission at 915 MHz
•Signal reception intervals at 16-second
•Minimum and Maximum records of indoor temperature,
indoor humidity and outdoor temperature
•Low battery indicator
•Wall mounting or table standing
(table stand included)
The Outdoor Temperature Sensor
•Remote transmission of outdoor
temperature to Temperature Station
by 915 MHz
•Water-resistant casing
LCD
Display
Function
Keys
Hanging
Hole
Battery
compartment
cover
Removable
stand

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•Wall mounting case (Mount in a sheltered location. Avoid direct
rain and sunlight)
SETTING UP:
When one sensor is used
1. First, insert the battery into the temperature sensor. (see “Install
and replace batteries in the temperature sensor“).
2. Immediately after and within 30 seconds, insert the batteries into
Temperature Station (see “Install and replace batteries in the
Temperature Station”). Once the batteries are in place, all
segments of the LCD will light up briefly. Following the time as
12:00 and the indoor temperature will be displayed. If these are
not displayed after 60 seconds, remove the batteries and wait for
at least 10 seconds before reinserting them.
3. After inserting the battery into the sensor, the Temperature
Station will start receiving data from the sensor. The outdoor
temperature and the signal reception icon should then be
displayed on the Temperature Station. If this does not happen
after 3 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 there should
be a distance of no more than 330 feet (100 meters) between the
final position of the Temperature Station and the sensor (see
notes on “Mounting” and “915 MHz Reception”).
When more than one sensor is to be used
1. User shall remove all the batteries from the Temperature Station
and sensors and wait 60 seconds if setting has been done with one
sensor before.
2. Insert the batteries to the first sensor.
3. Within 30 seconds of powering up the first sensor, insert the
batteries into to the Temperature Station. Once the batteries are in

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place, all segments of the LCD will light up briefly. Following time as
12:00 and the indoor temperature 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 sensor (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 and
reset from step 1.
5. Insert the battery into the second sensor immediately after (within
10 seconds after) inserting battery to the Temperature Station.
6. The outdoor temperature from the second sensor 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.
7. Insert the batteries into the third sensor immediately after (within
10 seconds after) inserting battery to the second sensor.
8. Then within 2 minutes, the channel 3 outdoor data from the third
sensor will be displayed and the channel icon will shift back to "1"
once the third sensor is successfully received. If this is not happen,
user shall restart the setting up from step 1.
9. In order to ensure sufficient 915 MHz transmission there should be
a distance of no more than 330 feet (100 meters) between the final
position of the Temperature Station and the sensor (see notes on
“Mounting” and “915 MHz Reception”).
Note:
After the three sensors have been set up, user may need to check the
readings displayed on the Temperature Station against those being shown
on the sensor displays, in order to recognize which channel each sensor is
displayed.

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If the signal reception is not successful on the first frequency (915MHz) for
45 seconds, the frequency is changed to 920MHz and the learning is tried
for another 45 seconds. If still not successful the reception is tried for 45
seconds on 910MHz. This will also be done for re-synchronization.
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 follow the set-up from
step 1.
HOW TO INSTALL AND REPLACE BATTERIES IN THE
TEMPERATURE STATION
The Temperature Station uses 2 x AAA, 1.5V
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.
HOW TO INSTALL AND REPLACE
BATTERIES IN THE
TEMPERATURE SENSOR
The temperature sensor uses 1 x CR2023, 3.0V
battery. When battery needs replacing, the low battery
icon will appear on the LCD of the Temperature
Station. To install and replace the batteries, please
follow the steps below:
1. Remove the battery compartment cover at the
back of the sensor.

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2. Insert the batteries, observing the correct polarity (see
marking).
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 sensor 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 regularly to
ensure optimum accuracy of these units. (Battery life - see
Specifications below)
Please participate in the preservation of
the environment. Return used batteries to
an authorized depot.
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 approximately 3 seconds to enter the
Manual setting mode.
•Press and release to toggle between different channel
readings.
MIN/MAX/+ key (Min/ Max temperature)
•Used to toggle between the minimum and maximum
recorded readings of indoor & outdoor temperature and
indoor humidity.
•Press and hold to reset minimum and maximum record
(when min or max record is shown).
LCD SCREEN AND SETTINGS:
*
When the signal from the sensor 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
Sensor Low
battery indicator
Receiver Lo
w
battery indicato
r
Outdoor Reception
Signal icon
*
Time
Indoor
Temperature in
°F or °C
Indoo
r
Humidity
%RH
Outdoor Temperature
in °F or °C
Channel No.

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(“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 humidity,
and outdoor data.
Section 1 - TIME
•Display of time (manually set).
Section 2 - INDOOR TEMPERATURE AND HUMIDITY
•Display of indoor temperature and humidity.
Section 3 - OUTDOOR TEMPERATURE
•Display of the outdoor temperature.
MANUAL SETTING:
12 / 24- HOUR TIME DISPLAY SETTING AND TEMPERATURE
UNIT (°C/°F) SETTING
User may choose to display the time in 12-hour or 24-hour mode:
Note:
When the time display is set as 12-hour mode, the temperature unit
will be fixed to °F; when the time mode is in 24-hour format, the
temperature unit will be set to °C.
1. In normal display mode, press and hold the “SET/ CH” key
for approximately 3 seconds. The "12h" or "24h" digit will be
flashing.
2. Press the “MIN/MAX/+” key to set the desired time display
mode.
3. Press and release the “SET/ CH” key to confirm and
advance to the MANUAL TIME SETTING.

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MANUAL TIME SETTING
User shall manually set the time of the Temperature Station by the
following steps:
1. The hour digit of the time display will be flashing.
2. Press the “MIN/MAX/+” key to adjust the hour (press and
hold to allow fast advance). Press “SET/ CH” key to confirm
and go to the minute setting.
3. The minute digit will be flashing. Press the “MIN/MAX/+” key
to adjust the minute (press and hold to allow fast advance).
Press “SET/ CH” key once more to return to normal display.
VIEWING THE MINIMUM AND MAXIMUM READINGS:
User may consult the minimum and maximum recordings for indoor
temperature and humidity, and outdoor temperature by following
these steps:
1. Press the “MIN/MAX/+” key once to view the minimum indoor
temperature and humidity and minimum outdoor temperature.
2. Press the “MIN/MAX/+” key once more to view the maximum
indoor temperature and humidity and maximum outdoor
temperature.
Minimum icon

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RESETTING THE MINIMUM AND MAXIMUM READINGS:
User may reset the minimum and maximum temperature / humidity
data to the current value by the following steps:
1. Press the “min/max/+” key once to display the minimum data.
2. Press and hold the “min/max/+” key for about 3 seconds to
reset all the minimum / maximum data to the current values
in a single action. (Data of all outdoor and indoor data will be
reset at the same time.)
TEMPERATURE SENSOR:
The outdoor temperature is measured and transmitted to the
Temperature Station every 16 seconds approximately.
The range of the temperature sensor may be affected by the
temperature. At cold temperatures, the transmitting distance may be
decreased. Please keep this in mind when placing the sensor.
915 MHz RECEPTION CHECK
The Temperature Station should receive the outdoor temperature
data within a few minutes after setup. If the temperature data are not
Maximum icon