La Crosse Technology WS-7215U-IT User manual

WS-7215U-IT
Wireless 915 MHz
Radio-controlled Temperature Station
Instruction Manual

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TABLE OF CONTENTS
Topic Page
Inventory of Contents/Additional Equipment 3
About WWVB 3
Quick Set-Up Guide 4
Detailed Set-Up Guide
Battery installation 5
Program Mode
Program Sequence and Default Settings 6
Function Keys 6
Setting the LCD Contrast 7
Setting the Time Zone 7-8
Daylight Saving Time Setting 8
Radio-controlled Time Setting 9
12/24-hour Time Setting 9
Setting the Time 10-11
Setting the Year, Day and Month 11
Setting the Snooze 12
Setting the Temperature Format 12
Setting the forecast sensitivity
Features
Indoor Temperature and Humidity 13
Outdoor Temperatures 13
Minimum & Maximum Records (Indoor,
Outdoor, & Resetting) 14-15
Additional Remote Control Sending Units (Set-Up,
Viewing, & Operation) 15-16
Mounting 17-18
Troubleshooting 19-20
Maintenance & Care 20
Specifications 21
Warranty Information 22-23

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INVENTORY OF CONTENTS
1. The Wireless Temperature Station (Figure 1).
2. One remote temperature sensor with mounting bracket (Figure 2).
3. Three each, ½” Philips screws.
4. One strip double-sided adhesive tape.
5. Instruction manual and warranty card.
ADDITIONAL EQUIPMENT (not included)
1. Two fresh AA 1.5V batteries for the Wireless Temperature Station.
Figure 1
Time LCD
Date LCD
Indoor LCD
Outdoor LCD
Figure 2
Mounting
Bracket TX29U-IT remote
temperature sensor
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 4 seconds!) of
all your outdoor data measured from
the sensors: follow your climatic
variations in real-time!
This product offers:

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2. Two fresh AA 1.5V batteries for the remote temperature sensor.
3. One, Philips screwdriver for mounting.
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 and date
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 Wireless Temperature Station.
However, due to the nature of the Earth’s Ionosphere, reception is very limited during
daylight hours. The temperature station will search for a signal every night when reception is
best. The WWVB radio station derives its signal 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 information on the atomic clock and WWVB please see the NIST
website at http://www.boulder.nist.gov/timefreq/stations/wwvb.htm.
QUICK SET-UP GUIDE
Hint: Use good quality Alkaline Batteries and avoid rechargeable batteries.
1. Have the Wireless Temperature Station and remote temperature sensor 3 to 5
feet apart.
2. Batteries should be out of both units for 10 minutes.
3. Place the batteries into the remote temperature sensor first then into the
Wireless Temperature Station.
(All remote temperature sensors must be started before the Wireless
Temperature Station)
4. DO NOT PRESS ANY BUTTONS FOR 15 MINUTES.
In this time the Wireless Temperature Station and remote temperature sensor will
start to talk to each other and the display will show both the indoor temperature and
an outdoor temperature. If the Wireless Temperature Station does not display both
temperatures after the 15 minutes please retry the set up as stated above. After both
indoor and outdoor temperatures are displayed for 15 minutes you can place your
remote temperature sensor outdoors and set your time.
The remote temperature sensor should be placed in a dry, shaded area. The
temperature sensor has a range of 330 feet. Keep in mind that the 330 feet is in open
air with no obstructions and that radio waves DO NOT curve around objects. Actual
transmission range will vary depending on what is in the path of the signal. Each

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obstruction (roof, walls, floors, ceilings, thick trees, etc.) will effectively cut signal
range in half.
Example: A Wireless Temperature Station with a 330 feet range is mounted on an
interior wall, so that the signal has to pass through one interior wall, one exterior
wall, and across the 10 feet width of the room between the 2 walls. The first wall
will reduce the range to 165 feet, and the second wall will reduce the range to 87
feet. Factoring in the 10 foot room, this leaves a maximum of 77 feet of remaining
signal range.
This allowance is typically enough for a frame wall with non-metallic siding;
however certain materials can reduce range even further. Metal siding, stucco, and
some types of glass can reduce signal range by as much as ¾ or more, compared to
the ½ reduction typical of most obstructions. It is possible to receive a signal
through these materials, however maximum range will be much less due to their
tendency to absorb or reflect a much larger portion of the sensor’s signal.
To complete the set up of your Wireless Temperature Station after the 15 minutes
have passed please follow the steps that follow in the Detailed Set-Up Guide.
DETAILED SET-UP GUIDE
I. BATTERY INSTALLATION (When one temperature sensor is being
used)
1. First, insert the batteries to the temperature sensor (see “A. Remote
Temperature sensor” below).
2. Within 30 seconds of powering up the sensor, insert the batteries to the
Temperature Station (see “B. Wireless Temperature Station” below). Once
the batteries are in place, all segments of the LCD will light up briefly.
Following the indoor temperature and humidity, 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 sensor. The outdoor temperature should then be
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 and the signal reception icon is no longer shown.

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A. REMOTE TEMPERATURE SENSOR
1. Remove the mounting bracket. The
bracket snaps on and off easily.
2. Remove the battery cover, by sliding the
cover down.
3. Observing the correct polarity install 2 AA
batteries. The batteries will fit tightly (to
avoid start-up problems make sure they do
not spring free).
4. Replace the battery cover by sliding upwards. Be sure battery
cover is on securely.
B. WIRELESS TEMPERATURE STATION
1. Remove the battery cover. To do this, insert a solid object in
the space provided at the lower-central position of the battery
cover, then push up and pull out on the battery cover.
2. Observe the correct polarity, and install 2 AA batteries.
3. Replace the battery cover.
*When the signal is successfully received by the Wireless Temperature
Station, the 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
Battery
Cover
Battery
cover
Sensor signal
reception icon*

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successful (icon on) or not (icon off). On the other hand, the short blinking
of the icon shows that a reception is being done now.
• 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
another 45 seconds. If still not successful the reception is tried for 45 seconds
on 910MHz. This will also be done for re-synchronization.
PROGRAM MODE
Programming Note: If 30 seconds is allowed to pass, or the CH button is
pressed during the programming mode, the unit will confirm/set the last
information entered—the display will stop flashing and return to normal
time-date readings. If you don’t leave the program mode during the
programming of sections III through XII, you can advance to step 4 of the
next program setting. If you do leave the program setting (or want to
program a specific setting) follow each instructional step to program that
setting.
I. PROGRAMMING SEQUENCE AND DEFAULT SETTINGS
The programming sequence and default (factory) settings are as
follows:
LCD Contrast 5
Time Zone -5 (Eastern)
Daylight Saving Time 1 (on)
Radio-controlled time reception ON
12/24-hour time 12
Time 12:00
Year 2006
Day and Month 1.1.
Snooze (this function not used) 10
Temperature Format °F
Setting the forecast sensitivity (this function not used)
2
Please note that while there is a snooze adjustment in the programming this
is an unused function as there is no alarm on the indoor temperature station.

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II. FUNCTION KEYS
The function keys are located on the front of the unit directly below the
LCD.
III. SETTING THE LCD CONTRAST
1. Press and hold the SET button for 5 seconds.
2. “LCD” will show in the time LCD and the number setting will
flash.
Note: There are 8 LCD contrast levels to choose from—“Lcd 0” is
the lightest, and “Lcd 7” is the darkest.
3. Press and release the IN button to select the level you desire.
4. Press and release the SET button to confirm and advance to
the Time Zone setting.
IV. TIME ZONE SETTING
1. Press and hold the SET button for 5 seconds.
2. “LCD” will show in the time LCD and the number setting
will flash.
3. Press and release the SET button again.
4. The time zone will flash in the date LCD.

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5. Press and release the IN button to select your time zone.
Note: When a time zone for the U.S. is selected the corresponding
abbreviation will appear above the time (please see the table on the
next page). It is possible to select any time zone from –12 GMT to
+12 GMT (for example to see the time in another country)
TIME ZONES
GMT 0
ALT Atlantic -4
EST Eastern -5
CST Central -6
MST Mountain -7
PST Pacific -8
ALA Alaska -9
HAW Hawaii -10
6. Press and release the SET button to confirm and advance to
the Daylight Saving Time setting.
V. DAYLIGHT SAVING TIME (DST) SETTING
1. Press and hold the SET button for 5 seconds.
2. “LCD” will show in the time LCD and the number setting will
flash.
3. Press and release the SET button twice.
4. “DST” will appear in the date LCD and either “1” or “0” will
flash.
5. Press and release the IN button to select DST on or off.
“DST 0” indicates that the feature is off and the WWVB will not
change times automatically. “DST 1” indicates that the feature is
on and the WWVB will change times automatically.

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Note: Some locations (Arizona and parts of Indiana) do not
follow Daylight Saving Time, and should select “DST 0.”
6. Press and release the SET button to confirm and advance to
the radio-controlled time on/off setting.
VI. RADIO-CONTROLLED TIME ON/OFF SETTING
1. Press and hold the SET button for 5 seconds.
2. “LCD” will show in the time LCD and the number setting will
flash.
3. Press and release the SET button three times.
4. “RCC” will appear in the date LCD and “ON” or “OFF” will
flash in the time LCD.
5. Press and release the IN button to select radio-controlled time
on or off.
6. Press and release the SET button to confirm and advance to
the 12/24-hour time setting.
VII. 12 OR 24 HOUR TIME SETTING
1. Press and hold the SET button for 5 seconds.
2. “LCD” will show in the time LCD and the number setting will
flash.
3. Press and release the SET button four times.
4. “12h” or “24h” will flash in the time LCD.
5. Press and release the IN button to select 12 or 24-hour time
format.

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Note: When in the 12-hour format “P.M.” will appear to the left
of the hour in the time LCD between the hours of noon and
midnight.
6. Press and release the SET button to confirm and advance to
the time setting.
VIII. TIME SETTING
There are two methods by which the time and date can be set:
A) Automatically via WWVB reception, or
B) Manually.
A. WWVB (Remote Control Time)
This method requires you to do nothing, except wait for the signal to be
received, and to select a time zone. Reception usually takes
approximately 15 minutes during optimal conditions. The best
condition for reception is at night, between midnight and 6:00 am—
when there is less atmospheric interference. To keep your time as
accurate as possible, the Wireless Temperature Station conducts a
WWVB search every night between these hours, and overrides any
manually set time. The WWVB tower icon (appearing in the TIME
LCD) will flash when a signal-search is in progress and a signal is
being received, and will remain steady when the signal has been
received. If the WWVB time has not been received after 15 minutes of
battery installation, you may manually set the time or leave the time
function alone (reception will occur regardless).
B. MANUAL TIME SETTING
Note: When in the 12-hour format “P.M.” will appear to the left of the
hour in the time LCD between the hours of noon and midnight.
1. Press and hold the SET button for 5 seconds.
2. “LCD” will show in the time LCD and the number setting will
flash.
3. Press and release the SET button five times.

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4. The time will flash in the time LCD.
5. Press and release the IN button to advance the hours.
6. Press and release the OUT button to advance the minutes.
7. Press and release the SET button to confirm and advance to the
year setting.
IX. SETTING THE YEAR, DAY AND MONTH
Note: Reception of the WWVB signal will also set the date and
day. The reception of the signal will override any programmed
date and day.
1. Press and hold the SET button for 5 seconds.
2. “LCD” will show in the time LCD and the number setting will
flash.
3. Press and release the SET button six times.
4. The year will flash in the date LCD.
5. Press and release the IN button to advance the year.
6. Press and release the SET button to confirm and advance to the
day/month setting.
7. The day and month will flash in the date LCD.
8. Press and release the IN button to advance the month.
9. Press and release the OUT button to advance the day.
10. Press and release the SET button to confirm and advance to the
snooze setting.
X. SETTING THE SNOOZE

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Note: This is an unused function of the Wireless Temperature Station and
should be disregarded. The setting has no bearing on the operation. Please
press and release the SET button to advance to select the temperature
format.
XI. SELECTING °F OR °C
1. Press and hold the SET button for 5 seconds.
2. “LCD” will show in the time LCD and the number setting will
flash.
3. Press and release the SET button nine times.
4. Either ”°F” or “°C” will flash in the time LCD.
5. Press and release the IN button to select the temperature format.
6. Press and release the SET button to confirm and complete the
setup.
XII. SETTING THE FORECAST SENSITIVITY
Note: This is an unused function of the Wireless Temperature Station and
should be disregarded. The setting has no bearing on the operation. Please
press and release the SET button to exit the manual setting.

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FEATURES OF THE WS-7215U-IT
I. INDOOR TEMPERATURE AND HUMIDITY
The current indoor temperature (viewed on the left) and relative humidity
(viewed on the right) are displayed in the INDOOR LCD.
II. OUTDOOR TEMPERATURE
The temperature received from the remote temperature sensor is viewed in
the OUTDOOR LCD. When there is more than one remote temperature
sensor unit in operation, a “boxed” number will appear to the right of the
temperature. This indicates which remote temperature sensor unit (1, 2, or
3) is currently displaying its data in the OUTDOOR LCD. (This feature is
explained in further detail in section IV—Adding Remote Temperature
Sensors).
Comfort Level Indicator
WWVB Tower Icon
(indicates time
reception)
Satellite icon (indicates
outdoor transmission)
Sensor Identification
number

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III. MINIMUM AND MAXIMUM TEMPERATURE RECORDS
The WS-7215U-IT keeps a record of the MINIMUM and MAXIMUM
temperature, and the time and date of their occurrence—for both the indoor
and outdoor modes.
A. VIEWING THE INDOOR TEMPERATURE RECORDS
1. Press the IN button once. “MIN” appears above the indoor
temperature and the LCD will flash, indicating that the
minimum temperature and the humidity, and the time and date
of temperature occurrence are displayed. The minimum
records will display for 30 seconds before returning to the
normal display mode.
2. Press the IN button again (once while “MIN” is still displayed,
twice otherwise). “MAX” appears above the indoor
temperature and the LCD will flash, indicating that the
maximum temperature and humidity, and the time and date of
temperature occurrence are displayed.
3. While “MAX” is still displayed press the IN button again to
return to the current data display. Or you can wait 30
seconds, during either the minimum or the maximum readings,
and the unit will automatically return to current data readings.
B. VIEWING THE OUTDOOR TEMPERATURE
RECORDS
1. Press the OUT button once. “MIN” appears above the
outdoor temperature and the LCD will flash, indicating that
the minimum temperature, and the time and date of occurrence

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are displayed. The minimum records will display for 30
seconds before returning to the normal display mode.
2. Press the OUT button again (once while “MIN” is still
displayed, twice otherwise). “MAX” appears above the
outdoor temperature and the LCD will flash, indicating that
the maximum temperature and the time and date of occurrence
are displayed.
3. While “MAX” is still displayed press the OUT button again to
return to the current data display. Or you can wait 30
seconds, during either the minimum or the maximum readings,
and the unit will automatically return to current data readings.
C. RESETTING THE MIMIMUM AND MAXIMUM
RECORDS
1. All the Indoor records (minimum and maximum) will be reset
after the IN button is pressed and held for 5 seconds.
2. All the Outdoor records (minimum and maximum) will be
reset after the OUT button is pressed and held for 5 seconds.
IV. ADDING REMOTE TEMPERATURE SENSORS (OPTIONAL)
The WS-7215U-IT is able to receive signals from 2 additional temperature
sensors. The following are instructions for the set-up of temperature sensor
units with the WS-7215-IT. These extra sensors can be purchased through
the same dealer as this unit.
1. Remove all the batteries from the receiver and sensor(s) and wait 60
seconds. During these 60 seconds, press any button 20 times to
discharge any excess power.
2. Insert the batteries to the first temperature sensor.
3. Within 30 seconds of powering up the first sensor, 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

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humidity, 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.
4. The outdoor temperature from the first sensor (channel 1) should then
be displayed on the Wireless Temperature Station. If this does not
happen and the signal reception icon is not shown, 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 sensor as soon as the outdoor
temperature readings from the first sensor are displayed on the
Wireless Temperature Station.
NOTE: You must insert the batteries into the second sensor within
10 seconds of reception of the first sensor.
6. The outdoor temperature from the second sensor and the "channel 2"
icon should then be displayed on the Wireless 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 to the third sensor as soon as the "channel 2" icon
and outdoor data are displayed on the Wireless Temperature Station.
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.
NOTE: You must insert the batteries into the third sensor within 10
seconds of reception of the second sensor.
IMPORTANT: Transmission problems will arise if the setting for
multiple 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.
V. VIEWING AND OPERATING WITH MULTIPLE REMOTE
TEMPERATURE SENSOR UNITS
1. To view the temperature of a different remote temperature sensor
unit, press and release the CH button. A shift from one “boxed”
number to the next should be observed in the OUTDOOR LCD.
2. To view the Minimum/Maximum temperature: first select which
remote temperature sensor to read data from (indicated by the
“boxed” number), then press the OUT button. Pressing this button

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once will display the minimum temperature, and the date and time
the data was recorded. Pressing this button a second time (while
“MIN” is still displayed, otherwise press the button twice) will
display the same data for the maximum recordings.
3. To reset the Minimum/Maximum readings, it is necessary to select
which remote temperature sensor you wish to reset. Press and
hold the OUT button for 5 seconds, the records for the selected
remote temperature sensor unit will be reset.
MOUNTING
Note: Before permanently mounting ensure that the indoor temperature
station is able to receive WWVB signals from the desired location. Also,
extreme and sudden changes in temperature will decrease the accuracy of
the Wireless Temperature Station. To achieve a true temperature reading,
avoid mounting where direct sunlight can reach the remote temperature
sensor or Wireless Temperature Station. While the remote temperature
sensor is weather proof, avoid submersion in water or snow. We
recommend that you mount the remote temperature sensor on an outside
North-facing wall. The sending range is 330ft—obstacles such as walls,
concrete, and large metal objects can reduce the range. Place both units in
their desired location, and wait approximately 15 minutes before
permanently mounting to ensure that there is proper reception. The
Wireless Temperature Station should display a temperature in the
OUTDOOR LCD within 4 minutes of setting up.
I. THE REMOTE TEMPERATURE SENSOR
The remote temperature sensor can be mounted in two ways:
•with the use of screws, or
•using the adhesive tape.
A. MOUNTING WITH SCREWS
1) Remove the mounting bracket from the remote
temperature sensor.
2) Place the mounting bracket over the desired location.
3) Through the three screw holes of the bracket, mark the
mounting surface with a pencil.

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4) Screw mounting bracket onto the mounting surface.
Ensure that the screws are flush with the bracket.
5) Insert the remote temperature sensor into the bracket.
B. MOUNTING WITH ADHESIVE TAPE
1) With a nonabrasive solution, clean and dry the back
of the mounting bracket and the mounting surface to
ensure a secure hold. The mounting surface should
be smooth and flat.
2) Remove the protective strip from one side of the
tape.
3) Adhere the tape to the designated area on the back of
the mounting bracket.
4) Remove the protective strip from the other side of the
tape.
5) Position the remote temperature sensor in the desired
location, ensuring that the Wireless Temperature
Station can receive the signal.
Note: The adhesive tape is not intended to be used as a permanent mounting
solution. Only use the adhesive tape while you are positioning the Wireless
Temperature Station and temperature sensor.
II. THE WIRELESS TEMPERATURE STATION
The Wireless Temperature Station can be mounted in two
ways:
• with the table stand or,
• on the wall with the use of a wall hanging screw (not
included).
A. USING THE TABLE STAND
The Wireless Temperature Station comes with the table
stand already mounted. If you wish to use the table-
stand all that is required is to place the Wireless
Temperature Station in an appropriate location.

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B. WALL MOUNTING
1) Remove the table-stand. To do this, pull down on the
stand from the rear and rotate forward.
2) Fix a screw (not included) into the desired wall,
leaving approximately 3/16 of an inch (5mm)
extended from the wall.
3) Place the Wireless Temperature Station onto the screw
using the hanging hole on the backside.
4) Gently pull the Wireless Temperature Station down to
lock the screw into place.
TROUBLESHOOTING
NOTE: For problems not solved, please contact La Crosse Technology.
Problem: No reception of WWVB time signal.
Solution: 1) Wait overnight for signal.
2) Be sure the Wireless Temperature Station is at least 6 feet from any
electrical devices, such as televisions, computers, or other radio-
controlled clocks.
3) Remove batteries for five minutes, reinsert and leave the unit alone
overnight without pressing buttons.
4) If there are still problems, contact La Crosse Technology
Problem: Hour is incorrect (minute and date are correct)
Solution: Be sure correct time zone and daylight saving time settings are selected.
Problem: The LCD is faint
Solution: 1) Set the LCD contrast to a higher number
2) Replace batteries
Problem: No outdoor temperature is displayed.
Solution: 1) Remove all batteries, reinsert into remote temperature sensor first, then
display.
2) Place remote sender closer to display.
3) Be sure all batteries are fresh.
4) Place remote temperature sensor and Wireless Temperature Station in
position so the straight-line signal is not passing through more than two
or three walls.