La Crosse Technology WS9123IT User manual

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TEMPERATURE AND HUMIDITY WEATHER STATION
Model WS9123IT Instruction Manual
!!Please read carefully before operating!!
INTRODUCTION:
Congratulations on purchasing this tiny 915MHz Temperature and Humidity Weather
Station which displays the time, indoor temperature, and up to three outdoor temperatures
and humidity readings. With only two easy to use keys, this product is ideal for use in the
home or office.

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« Instant Transmission+» is the up and coming state-of-the-art new
wireless transmission technology, exclusively designed and developed by
LA CROSSE TECHNOLOGY.
“IT +” offers you an immediate update of all your outdoor data measured
from the transmitters: follow your climatic variations in real-time!

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FEATURES:
The Temperature Station
LCD
Display
Function
Keys
Hanging
Hole
Battery
compartment
cover
Removable
stand

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Quartz clock in 12 or 24-hour time display (hour and minute, manually set)
Indoor and outdoor temperature reading in degree Celsius (°C) or Fahrenheit (°F)
Outdoor humidity reading in %RH
Can receive up to three outdoor transmitters
Minimum and Maximum records of indoor temperature, outdoor temperature and
outdoor humidity
Low battery indicator
Table standing or wall mountable

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The Outdoor Thermo-Hygro Transmitter
Remote transmission of outdoor temperature and humidity to
Temperature Station by 915 MHz signals
Displays alternately the measured temperature and humidity
readings on LCD
Shower proof casing
Wall mounting case. Mounting at a sheltered place. Avoid direct
rain and sunshine.

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SETTING UP:
When one transmitter is to be used
1. First, insert the batteries to the transmitter (see “How to install and replace
batteries in the Thermo-hygro transmitter”below).
2. Within 2 minutes 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 12:00 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 and humidity should then be

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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 915 MHz transmission however, this should under good
conditions be a distance no more than 100 metres between the final position of the
Temperature Station and the transmitter (see notes on “Positioning” and “915 MHz
Reception”).
When more than one transmitter is to be used
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.
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

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light up briefly. Following the indoor temperature and the time as 12:00 will be
displayed. If they are not displayed in the LCD after 60 seconds, remove the
batteries and wait for at least 60 seconds before reinserting them.
4. The outdoor temperature and humidity 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 and reset from step 1.
5. Insert the batteries to the second transmitter as soon as the outdoor temperature
and humidity readings from the first transmitter are displayed on the temperature
station.
Note: User shall insert the batteries into the second transmitter within 30 seconds of
reception of the first transmitter.

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6. The outdoor temperature and humidity from the second transmitter and the
"channel 2" icon should then be displayed on the Temperature station. If this does
not happen after 2 minutes, the batteries will need to be removed from all the units
and reset from step 1.
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
does not happen, user shall restart the setting up from step 1.
Note: User shall insert the batteries into the third transmitter within 30 seconds of
reception of the second transmitter.

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HOW TO INSTALL AND REPLACE BATTERIES IN THE TEMPERATURE STATION
The Temperature Station uses 2 x AAA, IEC LR3, 1.5V batteries.
When batteries 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 THERMO-HYGRO
TRANSMITTER
The Thermo-hygro transmitter uses 1 x CR2032, 3.0V Lithium battery.
When the battery needs to be replaced, 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. Unload the battery holder at the bottom of the transmitter.
2. Insert the battery, observing the correct polarity (see marking).
3. Replace the battery holder to 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

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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 at least every 12 months to ensure
optimum accuracy of these units.
Please participate in the preservation of the environment.
Return used batteries to an authorised depot.

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FUNCTION KEYS:
Temperature Station:
The Temperature Station has only two easy to use function keys.
Set/ch key (Setting/Channel)
Press and hold for about 3 seconds to enter the Manual setting mode.
min/ max/ +
key
Set/ ch key

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Used to toggle between the data of different outdoor transmitters (channel) "1", "2"
and "3", when more than 1 transmitter is used.
min/max/+ key (Min/ Max temperature)
Used to toggle between the minimum and maximum recorded readings of indoor &
outdoor temperature and outdoor humidity.

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LCD SCREEN AND SETTINGS:
Receiver Low battery indicato
r
Transmitter identification
(channel No.)
Transmitter Low battery indicator
Outdoor Reception
Si
g
nal icon*
Outdoo
r
Temperature in
°
C
Indoor
Temperature in °C
Outdoor humidity %RH

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*When the signal is successfully received by the temperature station, the Outdoor
reception icon will be switched on. (If not successful, the icon will not be shown in LCD) So
the user can easily see whether the last reception was successful (icon on) or not (icon
off). On the other hand, the flashing of the icon shows that a reception is being done now.
For better distinctness the LCD screen is split into 3 sections displaying the information for
time, indoor temperature, and outdoor data.
Section 1 - TIME
Display of time.
Section 2 - INDOOR TEMPERATURE
Display of indoor temperature

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Section 3 - OUTDOOR TEMPERATURE AND OUTDOOR HUMIDITY
Display of the outdoor temperature and humidity.
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, the temperature unit will be fixed to C.
1. In normal display mode, press and hold the set/ ch key for about 3 second. The "12h"
or "24h" digit will be flashing.

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2. Press the min/max/+ key to set the desired time display mode.
3. Press shortly the set key to advance to the MANUAL TIME SETTING.
MANUAL TIME SETTING
User shall manually set the time of 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 set 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
set key once more to return to normal display.

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VIEWING THE MINIMUM AND MAXIMUM READINGS:
User may view the minimum and maximum temperature and humidity data records of the
indoor or outdoor channels by the following steps:
1. In normal display, press set/ch key to choose the desired channel (transmitter).
2. Press the min/max/+ key once to view the minimum indoor temperature, minimum
outdoor temperature and minimum outdoor humidity of the selected channel.
Selected channel No.
Minimum icon

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3. Press the min/max/+ key once more to view the maximum indoor temperature,
maximum outdoor temperature and maximum outdoor humidity of the selected
channel.
Maximum icon
Selected channel No.