La Crosse Technology WS-9520U User manual

1
Battery
compartment
Function
keys
WEATHER PROJECTION STATION
Instruction Manual
INTRODUCTION:
Congratulations on purchasing this state-of-the-art weather projection station as an example
of innovative design and quality piece of engineering. Providing radio controlled time, date,
calendar, moon phase, indoor and outdoor temperature, indoor and outdoor relative
humidity, this unit will never keep you guessing on current and future weather conditions.
Operation of this product is simple and straightforward. By reading this operating manual, the
user will receive a better understanding of the weather projection station together with the
optimum benefit of all its features.
FEATURES:
The Weather Projection Station
•WWVB Radio-controlled time with manual setting option
•Time reception ON/OFF (user selectable)
•12/24-hour time display
•DST ON/OFF (daylight saving time)
•Time zone option ±12 hours
•Month, date, weekday calendar display
•Alarm setting with snooze function
•Automatic daylight saving time updating
•Weather forecasting with 24 combinations of weather icons and “weather boy” images
•Weather tendency indicator
•Temperature display with MIN/MAX records and time of reception
•Indoor and outdoor temperature display in ºF/ºC
•Humidity data with MIN/MAX records
•Indoor and outdoor humidity display as RH%
SNOOZE key
LCD
Display Projector

2
•Can receive up to 3 remote temperature/humidity sensors
•Time projection display (hour and minute)
•Outdoor temperature projection display (degrees ºF or ºC)
•Alternate projection display mode selectable
•Projection with adjustable brightness and projection orientation possible
•LCD contrast selectable
•E.L. back light
•Low battery indicator
•Table standing
•AC/DC power adapter included
The Remote Temperature/Humidity Sensor
•Remote transmission of outdoor temperature and humidity to weather projection station by 433 MHz
•Rain proof casing
•Wall mounting case
•LCD display of temperature and humidity readings
TO INSTALL AND REPLACE BATTERIES IN THE WEATHER PROJECTION STATION
The weather projection station uses 3 AA batteries. To install and replace
the batteries, please follow the steps below:
1. Push down on the top center of the battery cover and pull away
from the unit to remove the cover.
2. Insert batteries observing the correct polarity (see marking).
3. Replace compartment cover.
TO INSTALL AND REPLACE BATTERIES IN THE REMOTE TEMPERATURE/HUMIDITY
SENSOR
The remote temperature/humidity sensor uses 2 AA batteries. To install and replace the
batteries, please follow the steps below:
1. Remove the battery cover.
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 set-up procedures. This is due to a random security code assigned by the
remote temperature/humidity sensor at start-up. This code must be received and stored by
the weather projection station in the first 3 minutes of power being supplied to the remote
temperature/humidity sensor.
Table stand/wall
mount bracket

3
BATTERY CHANGE:
It is recommended to replace the batteries in all units on an annual basis to ensure optimum accuracy of
these units.
Please participate in the preservation of the environment. Return used batteries to an
authorized depot.
SETTING UP
The weather projection station can be either batteries-operated or powered by the provided AC
adapter.
BATTERY INSTALLATION:
1. First, insert the batteries into the weather projection station (see “To install and replace batteries in
the weather projection station”). Once the batteries are in place, all segments of the LCD will light up
briefly and a short signal tone will sound. Then the ALM1 6:00, the indoor temperature and humidity,
the time as 12:00, the date as WE 1.1. and the weather icons will be displayed. If the indoor
temperature and indoor humidity are not displayed after 15 seconds, remove the batteries and wait for
at least 3 minutes before reinserting them. Once the indoor data is displayed proceed to step 2.
2. Within 4 minutes of activating the weather projection station, place the batteries into the remote
temperature/humidity sensor (see “To install and replace batteries in the remote
temperature/humidity sensor“).
3. After inserting the batteries into the remote temperature/humidity sensor, the weather projection station
will start receiving data from the remote temperature/humidity sensor. The outdoor temperature and
humidity should then be displayed on the weather projection 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. The weather projection station can receive up to 3 remote temperature/humidity sensors. If you have
purchased additional remote temperature/humidity sensors, repeat from step 3 for all extra remote
temperature/humidity sensors. However, ensure that you leave 10 seconds in between the reception of
the last remote temperature/ humidity sensor and the set-up of the following remote temperature/
humidity sensor. The weather projection station will number the remote temperature/humidity sensors
in the order of set-up, i.e. the first remote temperature/humidity sensor will have the
temperature/humidity displayed with the number 1 against it and so on.
5. With less than 3 remote temperature/humidity sensor received, the weather projection station will try to
pick up the remaining one in approximately another 3 minutes. If 3 remote temperature/humidity
sensors are received, the weather projection station will stop further reception.
6. Once the outdoor temperature and the humidity have been received and displayed on the weather
projection station, the WWVB time code reception is automatically started. This takes typically between
6-8 minutes in good conditions.
7. If after 10 minutes, the WWVB time has not been received, use the SET key to manually enter a time
initially. The clock will automatically attempt to receive the WWVB time from 12:00 to 6:00 a.m. for a
successful reception. When WWVB reception signal is successful, the received time will override the
manually set time. The date is also updated with the received time. The next reception attempt will
occur on the following day. (Please refer to notes on “About WWVB Radio controlled Time” and
“Manual Time Setting”).
Your weather projection station is now operational!
Note:
If the batteries are used as the main power source:
1. Projected image brightness, alarm volume and back-light strength will be weaker when batteries are
low
2. Battery life time will be much less than 1 year; depending on the frequency of projection and alarm.

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TO USE THE WEATHER PROJECTION STATION POWER ADAPTER
The unit comes with an AC adapter for using the projector for an extended period of time, such as
throughout the night.
To connect the AC adapter:
Important!
Make sure that your household voltage is 120V! Otherwise it can result in damaging your weather
projection station.
1. Connect the AC adapter to a wall socket. Plug the adapter into the jack on the back of the weather
projection station. All segments of the LCD will light up briefly and a short signal tone will sound. Then
the ALM 1 6:00, the indoor temperature and humidity, the time as 12:00, the date as WE 1.1and the
weather icons will be displayed. If the indoor temperature and indoor humidity are not displayed after
15 seconds, remove the batteries and wait for at least 3 minutes before reinserting them.
2. Within 4 minutes of activating the weather projection station, place the batteries into the remote
temperature/humidity sensor (see “To install and replace batteries in the remote
temperature/humidity sensor“).
3. After inserting the batteries into the remote temperature/humidity sensor, the weather projection
station will start receiving data from the remote temperature/humidity sensor. The outdoor
temperature and humidity should then be displayed on the weather projection 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. The weather projection station can receive up to 3 remote temperature/humidity sensors. If you have
purchased additional remote temperature/humidity sensors, repeat from step 3 for all extra remote
temperature/humidity sensors. However, ensure that you leave 10 seconds in between the reception
of the last remote temperature/humidity sensor and the set-up of the following remote
temperature/humidity sensor. The weather projection station will number the remote
temperature/humidity sensors in the order of set-up, i.e. the first remote temperature/humidity sensor
will have the temperature/humidity displayed with the number 1 against it and so on.
5. With less than 3 remote temperature/humidity sensors received, the weather projection station will try
to pick up the remaining one in approximately another 3 minutes. If 3 remote temperature/humidity
sensors are received, the weather projection station will stop further reception.
6. Once the outdoor temperature and the humidity have been received and displayed on the weather
projection station, the WWVB time code reception is automatically started. This takes typically
between 6-8 minutes in good conditions.
7. If after 10 minutes, the WWVB time has not been received, use the SET key to manually enter a time
initially. The clock will automatically attempt to receive the WWVB time from 12:00 to 6:00 a.m. for a
successful reception. When WWVB reception signal is successful, the received time will override the
manually set time. The date is also updated with the received time. The next reception attempt will
occur on the following day. (Please refer to notes on “About WWVB Radio controlled Time” and
“Manual Time Setting”).
Your weather projection station is now operational!

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Note:
If the weather projection station is powered through the AC adapter, the projection will be constantly ON.
If the weather projection station is battery operated the projection will turn ON only when the SNOOZE key is
pressed. Once the SNOOZE key is released, the projection and E.L. backlight will stay on for approximately
10 seconds.
USING BOTH BATTERIES AND THE POWER ADAPTOR
When using both the AC adaptor and batteries the main power source of the weather projection station will
switch to AC power. The batteries will then act as a backup power source in the case of power failure.
RESETTING
The weather projection station and the remote temperature/humidity sensor need to be reset when one of
the following conditions occur:
•Unsuccessful 433MHz signal reception.
•Malfunction of the units.
•Batteries need replacement.
For resetting, remove all batteries from the units and unplug the AC adapter from the power source. Wait at
least for 3 minutes before powering up the weather projection station again. Proceed from step 1 in
“Setting Up”, “Battery Installation” or “How to use the Projection Station Power Adaptor”.
HOW TO USE THE PROJECTOR
The projector projects the current time and the current outdoor temperature onto the ceiling, only within a
darkened room. The projection image can also be adjusted in 4 upright positions, each with a rotation of
90º by using the key.
TO PROJECT THE TIME OR TEMPERATURE ONTO A FLAT SURFACE:
The projector will only project the current time, outdoor temperature or alternate between
time/outdoor temperature only.
1. Point the projection lens to the appropriate direction (ideal distance of the projection is 6 feet/2
meters).
2. Press the DISPLAY key to select the desired mode for the projection. There are 3 display modes:
M0 – projecting the current time only.
M1 – projecting the current outdoor temperature only.
M2 – projecting by switching the display of the current time and the current outdoor
temperature for every 5 seconds.
3. Adjust the projection image in an upright position with the key.
Note:
If more than one remote temperature/humidity sensor is used, only the temperature from remote
temperature/humidity sensor 1 will be projected.
ABOUT WWVB RADIO CONTROLLED TIME
The NIST (National Institute of Standards and Technology—Time and Frequency Division) WWVB radio
station is located in Ft. Collins, Colorado, and transmits the exact time signal continuously throughout the
United States at 60 kHz. The signal can be received up to 2,000 miles away through the internal antenna in
the weather projection station. However, due to the nature of the Earth’s Ionosphere, reception is very
limited during daylight hours. The weather projection station will search for a signal every night when
reception is best.

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The WWVB radio station receives the time data from the NIST Atomic clock in Boulder, Colorado. A team of
atomic physicists is continually measuring every second, of every day, to an accuracy of ten billionths of a
second per day. These physicists have created an international standard, measuring a second as
9,192,631,770 vibrations of a Cesium-133 atom in a vacuum. For more detail, visit
http://www.boulder.nist.gov/timefreq.htm. To listen to the NIST time, call [phone]. This number will
connect you to an automated time, announced at the top of the minute in “Coordinated Universal Time”,
which is also known as Greenwich Mean Time (GMT). This time does not follow Daylight Saving Time
changes. After the top of the minute, a tone will sound for every second. It is possible that your weather
projection station may not be exactly on the second due to the variance in the quartz. However, the clock will
adjust the quartz timing over the course of several days to be very accurate; under 0.10 seconds per day.
FUNCTION KEYS:
Weather Projection Station:
The weather projection station has 9 easy to use function keys; 4 on the left, 4 on the right, and 1 on the top
of the unit:
SET key
•Enter manual setting modes: LCD contrast, time zone, DST ON/OFF, Time reception ON/OFF, 12/24
hour display, manual time setting, calendar, snooze function, temperature °F or °C, and weather icon
sensitivity setting
•Stop the alarm during alarm ringing
•Stop snooze mode
•Back-light on
CH/+ key
•Increase value in all setting modes
•Stop the alarm during alarm ringing
•Toggle between the outdoor transmitter 1, 2 and 3 (if more than 1 transmitter is used)
•Stop snooze mode
•Back-light on
SNOOZE key
SET key CH/+ key
HOUR/IN
key
A
LARM 1
key
MIN/OUT
key
ALARM 2
key
DISPLAY key DIRECTION key

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Key (DIRECTION key)
•Project the image direction (can display 4 different orientations)
•Back-light on
DISPLAY key
•Toggle between the time and outdoor temperature or automatic alternates time/outdoor temperature
every 5 seconds display mode for projection
•Back-light on
ALARM 1 key
•Enter/exit the alarm 1 setting mode
•Active/de-active the alarm time 1 (even inside snooze mode)
•Stop the alarm during alarm ringing
•Back-light on
HOUR/IN key
•Press to set the alarm hour (inside alarm setting mode)
•Press shortly to toggle between MIN/MAX and current indoor temperature and humidity data
•Press and hold for 4 seconds to reset the MIN/MAX indoor temperature and humidity data
•Stop the alarm during alarm ringing
•Stop snooze mode
•Back-light on
MIN/OUT key
•Press shortly to toggle between MIN/MAX and current temperature/humidity values for selected
outdoor temperature channel.
•Press and hold for 4 seconds to reset the MIN/MAX records for selected channel.
•Press to set the alarm minute (inside alarm setting mode)
•Stop the alarm during alarm ringing
•Stop snooze mode
•Back-light on
ALARM 2 key
•Enter/exit the alarm 2 setting mode
•Active/de-active the alarm time 2 (even inside snooze mode)
•Stop the alarm during alarm ringing
•Back-light on
SNOOZE key
•Active/de-active snooze function
•Active the projection in battery operated mode
•Press and hold 2 seconds to stop the alarm during alarm ringing
•Exit the setting modes
•Back-light on

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A
larm
time
Weather
tendency
indicator
Time Display Calendar display
Indoor
relative
humidity
in RH%
A
larm
icon
Indoor
temperature
in ºF/ ºC
Weather
forecast
icon
Outdoor
data signal
reception
indicato
r
Outdoor
temperature
in ºF/ ºC
Outdoor
transmitter
identification
number
Outdoor
relative
humidity
in RH%
WWVB Signal
Reception Icon
LCD SCREEN
The LCD screen is split into 5 sections displaying the information for time, date, weather forecast, indoor
data, and outdoor data.
MANUAL SETTINGS:
The following manual settings can be changed after entering the manual set-up mode:
•LCD contrast setting
•Time zone setting
•DST (Daylight Saving Time) setting
•Time reception ON/OFF setting
•12/24-Hour setting
•Manual time setting
•Calendar setting
•Snooze setting
•°F/°C setting
•Weather forecasting icon sensitivity setting
LCD CONTRAST SETTING:
The LCD contrast can be set within 8 levels, from LCD 0 to LCD7 (Default setting is LCD 5):
1. Press and hold the SET key until the digit starts flashing.
2. Use the CH/+ key to view all levels of contrast.
3. Select the desired LCD contrast. Confirm with the SET key and enter in the Time Zone setting.
TIME ZONE SETTING:
A
larm icon
Indoor relative
humidity in RH%
DCF reception icon
(for DCF time)
Last digit flashing
Number
Digit
Flashing

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The time zone default of the weather projection station is EST –5. To set a different time zone:
1. The current time zone value starts flashing.
2. Use the CH/+ key to set the time zone. The range runs from 0 to -12 and then runs from +12 back to
0 in consecutive 1-hour intervals. The U.S. time zones are –5hr(EST), -6hr(CST), -7hr(MST) and –
8hr(PST) zones.
3. Confirm with the SET key and enter the DST (Daylight Saving Time) setting.
DST (DAYLIGHT SAVING TIME) SETTING:
Note: The DST default is “ON”, meaning that the received time will automatically be adjusted according to
Daylight Saving Time in the spring and fall. For areas that do not recognize DST changes (Arizona and parts
of Indiana) turn the DST “OFF”.
1. The digit “ON” will start flashing on the LCD.
2. Use the CH/+ key to turn OFF the DST function.
3. Confirm with the SET key and enter the Time Reception ON/OFF setting.
TIME RECEPTION ON/OFF SETTING:
In area where reception of the WWVB time is not possible, the WWVB time reception function can be turn
OFF. The clock will then work as a normal Quartz clock. (Default setting is ON).
1. The digit “ON” will start flashing on the LCD.
2. Use the CH/+ key to turn OFF the time reception function.
3. Confirm with the SET key and enter the 12/24-HOUR setting.
Note:
If the Time Reception function is turned OFF manually, the clock will not attempt any reception of
the WWVB time as long as the Time Reception OFF function is activated.
The Time Reception and the “WWVB” icons will not be displayed on the LCD.
12/24-HOUR SETTING:
The hour display can be selected to show hours in 12-hour or 24-hour settings. (Default 12-Hour)
1. Use the CH/+ key to toggle between “12H” or “24H”.
2. Confirm with the SET key and enter the Manual time setting.
MANUAL TIME SETTING:
In case the weather projection station cannot detect the WWVB-signal (for example due to disturbances,
transmitting distance, etc.), the time can be manually set. The clock will then work as a normal Quartz clock.
Digits
flashing
Flashing
Hour flashing
Minutes flashing
Flashing

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1. The hour digit will start flashing.
2. Use the CH/+ key to set the hour.
3. Press again the SET key to set the minutes. The minute digits start flashing.
4. Use the CH/+ key to set the minutes.
5. Confirm with the SET key and enter the Calendar setting.
Note:
The unit will still try to receive the signal between 12:00 to 6:00 a.m. every day even if the time has been
manually set and if the WWVB time reception function has been set ON. When it does receive the signal, it
will change the manually set time into the received time. During reception attempts the WWVB tower icon
will flash. If reception has been unsuccessful, then the WWVB tower icon will not appear but reception will
still be attempted the following hour.
CALENDAR SETTING:
The date default of the weather projection station is 1. 1. in the year 2003. Once the radio-controlled time
signals are received, the date is automatically updated. However, if the signals are not received, the date
can also be set manually.
1. The year starts flashing.
2. Use the CH/+ key to set the year (between year 2003-2029).
3. Press the SET key again to confirm and to enter the month setting. The month starts flashing.
4. Use the CH/+ key to set the month.
5. Press the SET key again to confirm and to enter the date setting mode. The date starts flashing.
6. Use the CH/+ key to set the date.
7. Confirm all calendar settings with the SET key and enter the Snooze setting.
SNOOZE SETTING:
The snooze time can be set OFF to a maximum time of 30 minutes (default is 10 minutes):
1. Use the CH/+ key to set the snooze time. Each pressing of the key will increase the snooze time by 5
minutes. The snooze can also be set OFF when the “OFF” digit is being displayed.
2. Confirm with the SET key and enter the Temperature setting
Note:
If the snooze time has been set “OFF”, the snooze function will not be activated.
°F/°C TEMPERATURE SETTING:
Digit flashing
Snooze time

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Icons
flashing
The temperature display can be selected to show temperature data in °F or °C (Default °F).
1. Use the CH/+ key to toggle between “°F” or “°C”.
2. Confirm with the SET key and enter the Weather forecasting icon sensitivity setting.
WEATHER FORECASTING ICON SENSITIVITY SETTING:
For locations with rapid changes of weather conditions, the weather icons can be set to a different level for
faster display of weather conditions.
1. The current sensitivity value will start flashing.
2. Use the CH/+ key to set the weather sensitivity level. There are 3 levels of setting: 1, 2 and 3; level 1
is the most sensitive setting; level 3 is the slowest recording setting (default setting is "2").
3. Confirm with the SET key and exit the Manual settings.
ALARM SETTING:
The alarm time can be set when pressing the ALARM 1 or ALARM 2 key.
1. Press the ALARM 1 or ALARM 2 key until the alarm digits flash.
2. Use the HOUR/IN key to set the alarm hour.
3. Use the MIN/OUT key to set the alarm minute.
4. Confirm with the ALARM 1, ALARM 2, or Snooze key and exit the Alarm setting.
Note:
The maximum alarm ring duration is 2 minutes.The alarm setting can be activated or deactivated manually
by pressing the ALARM 1 or ALARM 2 key, depending on which one is activated. The alarm icon will be
displayed on the LCD if the setting is activated.
SNOOZE ACTIVATION AND STOPPING THE ALARM:
The snooze function can be activated when the alarm is ringing by pressing the SNOOZE key. However the
snooze will only be activated when the snooze time is set other than OFF in snooze setting.
Otherwise the snooze function will not be activated.
When the alarm is snoozing, the alarm icon ((1)) or ((2)) will start flashing indicating that the alarm is active
but is in Snooze mode. To stop the snooze function when it is in snooze period, press and hold the
SNOOZE key for 2 seconds until a “Beep” is sounded. You can also press the HOUR/IN or MIN/OUT keys
once to stop the snooze function.
A
larm icons
A
larm time
Digit
flashing

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Sunny Cloudy Rainy
To stop the alarm, press any key (except the DISPL and keys)during alarm ringing. Or press and hold
the SNOOZE key for 2 seconds (a beep sound can be heard).
WEATHER FORECAST AND WEATHER TENDENCY INDICATOR:
WEATHER FORECAST ICONS
The weather forecast can be displayed a s follow:
For every sudden or significant change in the air pressure, the weather icons will update accordingly to
represent the change in weather. If the icons do not change, then it means either the air pressure has not
changed or the change has been too slow for the weather projection station to register. However, if the icon
displayed is a sun or raining cloud, there will be no change of icon if the weather gets any better (with sunny
icon) or worse (with rainy icon) since the icons are already at their extremes.
The icons displayed forecasts the weather in terms of getting better or worse and not necessarily sunny or
rainy as each icon indicates. For example, if the current weather is cloudy and the rainy icon is displayed, it
does not mean that the product is faulty because it is not raining. It simply means that the air pressure has
dropped and the weather is expected to get worse but not necessarily rainy.
Note:
After setting up, readings for weather forecasts should be disregarded for the next 12-24 hours. This will
allow sufficient time for the weather projection station to collect air pressure data at a constant altitude and
therefore result in a more accurate forecast.
Common to weather forecasting, absolute accuracy cannot be guaranteed. The weather forecasting feature
is estimated to have an accuracy level of about 75% due to the varying areas the weather projection station
has been designed for use. In areas that experience sudden changes in weather (for example from sunny to
rain), the weather projection station will be more accurate compared to use in areas where the weather is
stagnant most of the time (for example mostly sunny).
If the weather projection station is moved to another location significantly higher or lower than its initial
standing point (for example from the ground floor to the upper floors of a house), discard the weather
forecast for the next 12-24 hours. By doing this, the weather projection station will not mistake the new
location as being a possible change in air-pressure when really it is due to the slight change of altitude.
Weather Boy icon
Weather tendency indicator
Weather forecast icon

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WEATHER TENDENCY INDICATOR
Working together with the weather icons is the weather tendency indicators (located on the right side of the
weather icons). When the indicator points upwards, it means that the air-pressure is increasing and the
weather is expected to improve, but when indicator points downwards, the air-pressure is dropping and the
weather is expected to become worse.
Taking this into account, one can see how the weather has changed and is expected to change. For
example, if the indicator is pointing downwards together with cloud and sun icons, then the last noticeable
change in the weather was when it was sunny (the sun icon only). Therefore, the next change in the weather
will be cloud with rain icons since the indicator is pointing downwards.
Note:
Once the weather tendency indicator has registered a change in air pressure, it will remain permanently
visualized on the LCD.
WEATHER BOY FORECASTING ICONS:
A total of 24 Weather Boy icons combinations can be displayed depending on outdoor temperature and air
pressure recorded from outdoor transmitter 1 only.
Once the temperature and air pressure are recorded, the weather station automatically display the
appropriate Weather Boy icon as an indication of current weather and suggestion for dressing up
accordingly.
The icon will remain permanently visualized on the LCD once it registered a change in temperature and air
pressure.
For additional details on the Weather Boy icons, please refer to the additional information sheet “WEATHER
FORECAST ICONS COMBINATIONS”.
INDOOR RELATIVE HUMIDITY AND INDOOR TEMPERATURE:
The indoor temperature and humidity data, the indoor comfort indicator are automatically updated and
displayed on the fourth section of the LCD.
TOGGLING AND RESETTING THE INDOOR READINGS:
1. Press the HOUR/IN key to toggle between the indoor current, MIN/MAX temperature and humidity
data. The time and dates of the recorded data will also be displayed in the time and calendar sections
(for temperature data only).
2. To reset the MIN/MAX data, press and hold the HOUR/IN key for about 4 seconds. This will reset all
recorded indoor data to the current temperature and humidity readings.
OUTDOOR RELATIVE HUMIDITY AND OUTDOOR TEMPERATURE
The last LCD section shows the outdoor temperature and humidity, the reception indicator, the MIN/MAX
outdoor data. A number in the center will also be shown if more than one transmitter has been used.
Indoor relative
humidity in RH%
Indoor temperature
in °F or ºC

14
TOGGLING AND RESETTING THE OUTDOOR RECORDINGS:
1. To toggle between the outdoor current, MIN/MAX temperature and humidity data and the times (for
temperature data only) that were recorded press the MIN/OUT key:
Once to show the MAX outdoor temperature and humidity data with the recorded time and date.
Twice to show the MIN outdoor temperature and humidity data with the recorded time and date.
Three times to return to the current displayed values.
2. To toggle between transmitters, press the CH/+ key:
Once to show transmitter 2
Twice to show transmitter 3
Three times to return to transmitter 1
Note: The transmitter number will only be displayed if there is more than one transmitter being
used.
3. To reset the MIN/MAX outdoor temperature, and the time at which they were recorded, press and
hold the MIN/OUT key for about 4 seconds. This will reset all MIN/MAX data recorded to the
displayed values for that particular transmitter.
TO EXIT THE MANUAL SETTING MODE
To exit the manual setting mode anytime during the manual setting modes, press the SNOOZE key anytime
or wait for automatic timeout. The mode will return to normal time display.
E.L. BACK-LIGHT
The back-light is automatically switched ON when any keys are pressed. The back-light will be switched on
for approximately 10 seconds before automatically switching OFF. However, if the SNOOZE key is pressed
and held down, then back-light will remain ON constantly until the key is released.
ABOUT THE OUTDOOR REMOTE TEMPERATURE/HUMIDITY SENSOR
The range of the remote temperature/humidity sensor may be affected by the temperature. At cold
temperatures the transmitting distance may be decreased. Please bear this in mind when positioning the
sensor. The battery life may be reduced as well at cold temperatures.
CHECKING FOR 433MHz RECEPTION
If the outdoor temperature and humidity data is not being received within three minutes after setting up
(the display shows “- -. - °F” and “- -%” on the outdoor section of the weather projection station after 3
attempts during normal operation), please check the following items:
1. The distance of the weather projection station or remote temperature/humidity sensor should be at
least 6 feet (2 meters) away from any interfering sources such as computer monitors or TV sets.
2. Avoid placing the remote temperature/humidity sensor onto or in the immediate proximity of metal
window frames.
3. Using other electrical products such as headphones or speakers operating on the 433MHz-signal
frequency may prevent correct signal transmission or reception. Neighbors using electrical devices
operating on the 433MHz-signal frequency can also cause interference.
Outdoor
temperature
in °F/ °C Outdoor relative
humidity in RH%
Transmitter
identification number
(only if there is more
than one transmitter)
Outdoor reception
indicator

15
Note:
When the 433 MHz-signal is received correctly, do not re-open the battery cover of either the remote
temperature/humidity sensor or weather projection station, as the batteries may spring free from the
contacts and force a false reset. Should this happen accidentally then reset all units (see “Setting up”
above) otherwise transmission problems may occur.
The transmission range is approximately 330 feet (100 meters) from the remote temperature/humidity
sensor to the weather projection station (in open space). However, this depends on the surrounding
environment and interference levels. If no reception is possible despite the observation of these factors, all
system units have to be reset (see “Setting up” above).
POSITIONING THE REMOTE TEMPERATURE/HUMIDITY SENSOR:
Each transmitter is supplied with 2 wall mounting screws and plastic anchors. To wall mount simply:
1. Secure the wall base onto a desired wall using the screws and
plastic anchors.
2. Insert the transmitter to the wall base.
Note:
Before permanently fixing the transmitter wall base, pace all units in the desired locations to check that the
outdoor temperature and humidity readings are receivable. In event that the signal is not received, relocate
the transmitters or move them slightly as this may help the signal reception.
CARE AND MAINTENANCE:
•Extreme temperatures, vibration and shock should be avoided as these may cause damage to the
units and give inaccurate forecasts and readings.
•When cleaning the display and casings, use a soft damp cloth only. Do not use solvents or scouring
agents as they may mark the LCD and casings.
•Do not submerge the units in water.
•Immediately remove all low powered batteries to avoid leakage and damage. Replace only with new
batteries of the recommended type.
•Do make any repair attempts to the units. Return it to their original point of purchase for repair by a
qualified engineer. Opening and tampering with the units may invalidate their guarantee.
•Do not expose the units to extreme and sudden temperature changes, this may lead to rapid changes
in forecasts and readings and thereby reduce their accuracy.
SPECIFICATIONS:
Temperature measuring range:
Indoor : +14.2°F to +139.8°F with 0.2°F resolution
-9.9ºC to +59.9ºC with 0.1ºC resolution
(“OFL” displayed if outside this range)
Outdoor : -21.8°F to +157.8°F with 0.2°F resolution
-29.9ºC to +69.9ºC with 0.1ºC resolution
(“OFL” displayed if outside this range)
Table stand/wall
mount bracket

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Relative humidity measuring range:
Indoor and outdoor : 1% to 99% with 1% resolution
(“- -” displayed if outside this range)
Indoor temperature checking interval : every 15 seconds
Indoor humidity checking interval : every 20 seconds
Outdoor temperature reception : every 5 minutes
Transmitter checking interval : every 1 minute
Power supply:
Weather projection station : 3 x AA, 1.5V
Remote temperature/humidity sensor: 2 x AA, 1.5V
Battery life cycle : approximately 12 months, less if the projection is used frequently)
(Alkaline batteries recommended)
Dimensions (H x W x D)
Weather projection station : 4.33 x 6.67 x 2.92 inches
(110.2 x 169.6 x 74.4 mm)
Remote temperature/humidity sensor : 6.29 x 1.69 x 0.90 inches
(160 x 43 x 23 mm)
LIABILITY DISCLAIMER
•The manufacturer and supplier cannot accept any responsibility for any incorrect readings and any
consequences that occur should an inaccurate reading take place.
•This product is not to be used for medical purposes or for public information.
•This product is only designed to be used in the home as indication of the future weather and is not
100% accurate. Weather forecasts given by this product should be taken only as an indication and
not as being totally accurate.
•The specifications of this product may change without prior notice.
•This product is not a toy. Keep out of the reach of children.
•No part of this manual may be reproduced without written consent of the manufacturer.
WARRANTY INFORMATION
La Crosse Technology, Ltd provides a 1-year limited warranty on this product against manufacturing defects
in materials and workmanship.
This limited warranty begins on the original date of purchase, is valid only on products purchased and used
in North America and only to the original purchaser of this product. To receive warranty service, the
purchaser must contact La Crosse Technology, Ltd for problem determination and service procedures.
Warranty service can only be performed by a La Crosse Technology, Ltd authorized service center. The
original dated bill of sale must be presented upon request as proof of purchase to La Crosse Technology,
Ltd or La Crosse Technology, Ltd’s authorized service center.
La Crosse Technology, Ltd will repair or replace this product, at our option and at no charge as stipulated
herein, with new or reconditioned parts or products if found to be defective during the limited warranty period
specified above. All replaced parts and products become the property of La Crosse Technology, Ltd and
must be returned to La Crosse Technology, Ltd. Replacement parts and products assume the remaining
original warranty, or ninety (90) days, whichever is longer. La Crosse Technology, Ltd will pay all expenses
for labor and materials for all repairs covered by this warranty. If necessary repairs are not covered by this
warranty, or if a product is examined which is not in need or repair, you will be charged for the repairs or
examination. The owner must pay any shipping charges incurred in getting your La Crosse Technology, Ltd
product to a La Crosse Technology, Ltd authorized service center. La Crosse Technology, Ltd will pay
ground return shipping charges to the owner of the product to a USA address only.

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Your La Crosse Technology, Ltd warranty covers all defects in material and workmanship with the following
specified exceptions: (1) damage caused by accident, unreasonable use or neglect (including the lack of
reasonable and necessary maintenance); (2) damage occurring during shipment (claims must be presented
to the carrier); (3) damage to, or deterioration of, any accessory or decorative surface; (4) damage resulting
from failure to follow instructions contained in your owner’s manual; (5) damage resulting from the
performance of repairs or alterations by someone other than an authorized La Crosse Technology, Ltd
authorized service center; (6) units used for other than home use (7) applications and uses that this product
was not intended or (8) the products inability to receive a signal due to any source of interference.. This
warranty covers only actual defects within the product itself, and does not cover the cost of installation or
removal from a fixed installation, normal set-up or adjustments, claims based on misrepresentation by the
seller or performance variations resulting from installation-related circumstances.
LA CROSSE TECHNOLOGY, LTD WILL NOT ASSUME LIABILITY FOR INCIDENTAL, CONSEQUENTIAL,
PUNITIVE, OR OTHER SIMILAR DAMAGES ASSOCIATED WITH THE OPERATION OR MALFUNCTION
OF THIS PRODUCT. THIS PRODUCT IS NOT TO BE USED FOR MEDICAL PURPOSES OR FOR
PUBLIC INFORMATION. THIS PRODUCT IS NOT A TOY. KEEP OUT OF CHILDREN’S REACH.
This warranty gives you specific legal rights. You may also have other rights specific to your State. Some
States do no allow the exclusion of consequential or incidental damages therefore the above exclusion of
limitation may not apply to you.
For warranty work, technical support, or information contact:
La Crosse Technology
2809 Losey Blvd. S.
La Crosse, WI 54601
Phone: [phone]
Fax: [phone]
e-mail:
[e-mail]
(warranty work)
[e-mail]
(information on other products)
web:
www.lacrossetechnology.com
Questions? Instructions? Please visit:
www.lacrossetechnology.com/9520
All rights reserved. This handbook must not be reproduced in any form, even in excerpts, or
duplicated or processed using electronic, mechanical or chemical procedures without written
permission of the publisher.
This handbook may contain mistakes and printing errors. The information in this handbook is
regularly checked and corrections made in the next issue. We accept no liability for technical
mistakes or printing errors, or their consequences.
All trademarks and patents are acknowledged.

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FCC ID: OMO-01RX (receiver), OMO-01TX (transmitter)
THIS DEVICE COMPLIES WITH PART 15 OF THE FCC RULES. OPERATION IS SUBJECT TO THE FOLLOWING
TWO CONDITIONS:
1. THIS DEVICE MAY NOT CAUSE HARMFUL INTERFERENCE, AND
2. THIS DEVICE MUST ACCEPT INTERFERENCE RECEIVED, INCLUDING INTERFERENCE THAT MAY
CAUSE UNDESIRED OPERATION.