La Crosse Technology WS-7107U User manual

WS-7107U
Wireless 433 MHz
Weather Station
Instruction Manual

2
TABLE OF CONTENTS
Topic Page
Inventory of Contents 3
Additional Equipment 4
Quick Setup 5-8
Detailed Setup Guide
Battery Installation 9-11
Setting the Weather Station 11-12
Features
Minimum and Maximum
Temperatures 13
Resetting Minimum and
Maximum Temperatures 14
Adding additional remote
temp/humidity sensors
(optional)
14-16
Viewing and operating multiple
remote temp/humidity sensors 17-18
Mounting 18-19
Troubleshooting 20-23
Maintenance and Care 23
Specifications 24-25
Warranty Information 26-31

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INVENTORY OF CONTENTS
1. Two indoor weather station (Figure 1)
2. The remote temperature/humidity
sensor (TX7U) and mounting bracket.
(Figure 2)
3. Mounting hardware.
4. Instruction Manual and Warranty Card.
Figure 1 Figure 2

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ADDITIONAL EQUIPMENT
(not included)
1. 1 Philips screwdriver.
2. 2 Fresh AA 1.5V batteries.
(for indoor weather station)
3. 2 Fresh AA 1.5V batteries.
(for temp/humidity sensor)

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QUICK SETUP
Hint: Use good quality Alkaline Batteries
and avoid rechargeable batteries.
1. Have the indoor weather station and
remote temp/humidity sensor 3 to 5 feet
apart.
2. Batteries should be out of all units for
10 minutes.
3. Place the batteries into the remote
temp/humidity sensor first, then into
the indoor weather station.
(All remote temp/humidity sensors
must be started before the indoor
weather station)
4. DO NOT PRESS ANY BUTTONS
FOR 15 MINUTES.
In this time the indoor weather station and
remote temp/humidity sensor will start to
talk to each other and the displays will show
both the indoor temperature and an outdoor
temperature and humidity. If the indoor

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weather station does not display both the
indoor temperature and the outdoor
temperature and humidity after the 15
minutes please retry the set up as shown on
page five.
After both indoor temperature and outdoor
temperature and humidity are displayed for
10 minutes you can place your remote
temp/humidity sensor outdoors and set your
time.
Notes on Outdoor Sensor Placement
The remote temp/humidity sensor should be
placed in a dry, shaded area. Fog and mist
will not harm your remote temp/humidity
sensor but direct rain must be avoided.
The remote temp/humidity sensor has a
range of 330 feet. Any walls that the signal
will have to pass through will reduce
distance. An outdoor wall or window can
have up to 30 feet of resistance and an

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interior wall can have up to 20 feet of
resistance. Your distance plus resistance
should not exceed 330 ft. in a straight line.
To complete the set up of your indoor
weather stations after the 10 minutes have
passed, please follow the steps below.
1. Press and hold the “SET” button for
two seconds.
2. The minutes will now be flashing.
a. Press and release the “+”
button until the correct
minutes are showing.
b. When the correct minutes are
shown, press and release the
“SET” button once.
3. The hours will now be flashing.
a. Press and release the “+”
button until the correct hour
is displayed.
Note: There is “PM” displayed to
the left of the hour when between
noon and midnight. During the

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Battery
compartment
AM hours this area will be blank.
Press and release the SET button three
more times and your time is set.
NOTE: There is also a setting for the
temperature measuring unit and 12/24-
hour time. Please see the detailed set-up
section for more details on these settings.
DETAILED SETUP GUIDE
I. BATTERY INSTALLATION
A. REMOTE TEMP/HUMIDITY
SENSOR
Battery
cover

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1. Remove battery cover
2. Observing the correct polarity, install
2 AA batteries—make sure they do not
spring free, or start-up problems may
occur.
3. Replace cover.
B. INDOOR WEATHER STATION
Note: After the batteries are installed, DO
NOT press any buttons for 15 minutes. This
may interfere with the signals, causing
temperatures to register incorrectly.
1. Remove the battery cover on the
backside. To do this, push up and pull
out.
2. Observing the correct polarity, install
2 AA batteries.

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3. Replace
battery
cover.
4. Wait 15
minutes
or until
both the
indoor
and
outdoor temperatures are shown on the
indoor weather station.
5. The indoor weather station should
now show: “-:- -” in the TIME LCD,
indoor temperature in the INDOOR
LCD and outdoor temperature and
humidity in the OUTDOOR LCD.
II. SETTING THE WEATHER STATION
1. Press and hold the “SET” button for 2
seconds.
2. The minutes will begin to flash.
Battery
compartment
Battery
cover

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3. Press and release the “+” button to
advance to your desired minutes.
4. Press and release the “SET” button to
move to the hour setting.
5. The hours will begin to flash.
6. Press and release the “+” button to
set the hour.
7. Press and release the “SET” button to
move to the temperature measurement
unit setting.
8. Either °F or °C will flash in the
display.
9. Press and release the “+” button to
select the temperature measurement
unit to °(F)ahrenheit or °(C)elsius.
10. Press and release the “SET” button
to move to the time format setting.
11. “12h” or “24h” will flash in the
display.
12. Press and release the “+” button to
select 12 or 24-hour time format.
13. Press and release the “SET” button
to confirm settings and exit the

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setting mode.
Note: When in the 12-hour time mode
“PM” is displayed to the left of the hour
when between noon and midnight. During
the AM hours this area will be blank.
FEATURES
A. MINIMUM AND MAXIMUM
TEMPERATURES
1. Press and release the
“MIN/MAX” button.
“MIN” appears at the
bottom of the display and
the recorded minimum
temperatures are
displayed.

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2. Press and release the
“MIN/MAX” button to
toggle to the minimum
temperatures, “MAX”
appears at the bottom of
the display and the
recorded maximum
temperatures are
displayed.
B. RESETTING THE MINIMUM AND
MAXIMUM TEMPERATURES
To reset both the minimum and
maximum temperatures—press and hold
the “MIN/MAX” button for 5 seconds.
C. ADDING ADDITIONAL
REMOTE TEMP/HUMIDITY
SENSORS (OPTIONAL)
The WS-7107U is able to receive signals
from 3 different remote temperature,
temperature/humidity sensors. Following
are some brief instructions for the basic

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set-up of remote sensor units with the
WS-7107U. These extra sensors can be
purchased through the same dealer as
this unit, or by contacting La Crosse
Technology directly. A TX6 will
monitor temperature only, a TX3U will
monitor temperature and display the
temperature on its LCD, the TX3UP will
monitor the temperature via a probe for
use in pools, spas, etc and the TX4U or
TX7U will monitor temperature and
humidity.
Note: When setting up multiple units it
is important to remove the batteries from
all existing units in operation, then to
insert batteries first into all the remote
temp/humidity sensor units, and in
numeric sequence. Second, install
batteries into the indoor weather station.
Transmission problems will arise if this
is not done correctly and if the total time
for set-up exceeds 6 minutes.

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1. It is necessary to remove the batteries
from all units currently in operation.
2. Remove the battery covers to all
remote sensor units.
3. Place all remote sensor units in a
numeric sequential order.
4. In sequential order, install batteries
(follow the same battery installation
procedures seen in section “I” of the
Detailed Set-Up Guide) into the
remote sensors.
5. Install batteries into the indoor
weather station.
6. Follow the Detailed Set-Up Guide for
programming and operating
instructions.

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D. VIEWING AND OPERATING
WITH MULTIPLE REMOTE
SENSOR UNITS
1. To view the temperature of a different
remote 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 from which
remote temp/humidity sensor to read
data from (indicated by the “boxed”
number). Pressing and releasing the
“MIN/MAX” button will toggle
through the minimum and maximum
indoor temperature, and the minimum
and maximum outdoor temperature.

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3. To reset the Minimum/Maximum
readings, press and hold the
“MIN/MAX” button for five seconds.
MOUNTING
Note: To achieve a true temperature
reading, avoid mounting in direct sunlight.
We recommend that you mount the remote
temp/humidity sensor on an outside North-
facing wall. The sending range is 330ft;
obstacles such as walls, concrete, and large
metal objects will reduce the range. Place
both units in their desired location
temporarily to test reception capability
before permanently mounting.
A. REMOTE TEMP/HUMIDITY
SENSOR
1. Remove the mounting bracket from
the remote temp/humidity sensor
2. Mount using either screws or
adhesive tape.

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3. Reattach the remote temp/humidity
sensor to the mounting bracket.
B. THE WEATHER STATION
1. The indoor weather station comes
with the table stand already mounted.
If you wish to use the table-stand, all
that is required is to place the indoor
weather station in your desired
location.
2. To wall mount:
a) Remove the table stand by pulling
down on the stand from the rear and
rotating forward.
b) Fix a screw (not included) into the
desired wall.
c) Place the indoor weather station
onto the screw using the hanging
hole on the backside.
d) Gently pull the indoor weather
station down to lock the indoor
weather station into place.

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TROUBLESHOOTING
NOTE: For problems not solved, please
contact La Crosse Technology via e-mail or
phone, or visit our website,
www.lacrossetechnology.com
Problem: The LCD is faint
Solution: Replace batteries
Problem: No outdoor temperature or
humidity is displayed.
Solution:
1) First try to re-establish communication
between the remote sensor and indoor
weather station by moving both units to
within three to five feet of each other.
Wait about ten minutes and then check
for a temperature and humidity.
2) If this does not work please remove the
batteries from both units and restart the
system (please see Detailed Set-up on
page nine through eleven).
Note: Please make sure when restarting the
system that all batteries are fresh.

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3) Once the system has been reset and you
have a temperature and humidity reading
from the sensor, temporarily place the
remote temp/humidity sensor in the
previous location.
Note: If there is an outdoor temperature and
humidity displayed when the two units are
close together there was either too much
distance between the two units previously or
some type of interference that was causing
poor reception.
4) If after 15 minutes the temperature and
humidity are not displayed you will need
to choose another location for placement
of the temp/humidity sensor.
5) The best way of doing this is to move the
sensor 10 feet closer to the indoor
weather station.
6) After moving the remote temp/humidity
sensor please wait 15 minutes to give the
indoor weather station time to re-acquire
the signal.