La Crosse Technology WS-7212U User manual

WS-7212U Wireless 433 MHz Weather Station Instruction Manual
INVENTORY OF CONTENTS
1. Two indoor weather stations (Figure 1)
2. The remote temperature/humidity sensor (TX4U) and mounting bracket. (Figure 2)
3. Mounting hardware.
4. Instruction Manual and Warranty Card.
Figure 2
Figure 1
ADDITIONAL EQUIPMENT
(not included)
1. 1 Philips screwdriver.
2. 4 Fresh AA 1.5V batteries.
(2 for each indoor weather station)
3. 2 Fresh AA 1.5V batteries.
(for temp/humidity sensor)
QUICK SETUP
Hint: Use good quality Alkaline Batteries and avoid rechargeable batteries.
1. Have the indoor weather stations 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 stations.
(All remote temp/humidity sensors must be started before the indoor weather stations)
4. DO NOT PRESS ANY BUTTONS FOR 15 MINUTES.
In this time the indoor weather stations 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 weather stations do 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 80 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 interior wall can have up to 20
feet of resistance. Your distance plus resistance should not exceed 80 ft. in a straight line.
Notes on Weather Station Placement
The 80 ft distance is between each indoor weather station and the temp/humidity sensor independently. The placement
of one indoor weather station does not affect the placement of the second indoor weather station.
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 five seconds.
2. The hour will now be flashing.
a. Press and release the “+” button until the correct hour is shown.
Note: There is “PM” displayed to the left of the hour when between noon and midnight. During the AM
hours this area will be blank.
b. When the correct hour is shown, press and release the “SET” button once.
3. The minutes will now be flashing.
a. Press and release the “+” button until the correct minutes are displayed.
Press and release the SET button once more and you are done.
DETAILED SETUP GUIDE
I. BATTERY INSTALLATION
A. REMOTE TEMP/HUMIDITY SENSOR
Battery
compartment
Battery cover
1. Remove the mounting bracket.
2. Remove battery cover
3. Observing the correct polarity, install 2 AA batteries—make sure they do not spring free, or start-up problems
may occur.
4. Replace Cover
B. INDOOR WEATHER STATIONS
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.
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 stations should now show: “-:- -” in the TIME LCD, indoor temperature in the INDOOR
LCD and outdoor temperature and humidity in the OUTDOOR LCD.
Battery
Compartment
Battery cover

SETTING THE TIME
6. Press and hold the “SET” button for 5 seconds.
7. The hour will begin to flash.
8. Press and release the “+” button to advance the hour to your desired hour.
9. Press and release the “SET” button to move to the minute setting.
10. The minutes will begin to flash.
11. Press and release the “+” button to set the minutes.
12. Press and release the “SET” button to activate the clock.
Note: There is “PM” 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, “MAX” appears at the bottom of the display and the recorded
maximum temperatures are displayed.
2. Press and release the “MIN/MAX” button to toggle to the minimum temperatures, “MIN” appears at the bottom
of the display and the recorded minimum 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-7212U is able to receive signals from 3 different remote temperature, temperature/humidity sensors.
Following are some brief instructions for the basic set-up of remote sensor units with the WS-7212U. 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 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 stations. Transmission problems will arise if this is not done correctly and
if the total time for set-up exceeds 6 minutes.
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 stations.
6. Follow the Detailed Set-Up Guide for programming and operating instructions.

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.
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 80ft; 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.
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.
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.
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 a 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.
7)

Problem: Temperatures do not match if units are placed next to each other.
Solution: Each temp/humidity sensor is manufactured to be accurate to within 2 degree plus or minus and under
normal conditions. It is possible for two temp/humidity sensors to be as much as 4 degrees different. The difference
can be exaggerated further because the temp/humidity sensors are designed for different working environments. The
indoor sensor is less responsive to ambient air currents because of the shielding effect of the indoor weather station’s
case. In addition, the casing can act as a heat sink to absorb and store heat from external sources (i.e. handling of the
case or radiant heat). In addition, the much greater range of the outdoor temp/humidity sensor requires a different
calibration curve than the indoor range. Error is usually greater at the extreme ends of a range, making it harder to
compare different ranges with different curves. Under non-laboratory conditions, it is difficult to compensate for the
above factors and obtain an accurate comparison.

MAINTENANCE AND CARE INSTRUCTIONS
• Extreme temperatures, vibration, and shock should be avoided to prevent damage to the units.
• Clean displays and units with a soft, damp cloth. Do not use solvents or scouring agents; they may mark the
displays and casings.
• Do not submerge in water.
• Do not subject the units to unnecessary heat or cold by placing them in the oven or freezer.
• Opening the casings invalidates the warranty. Do not try to repair the unit. Contact La Crosse Technology for
repairs.
SPECIFICATIONS
Transmitting
Frequency
433MHz
Measuring Range - Temperature
Indoor Weather
Station: Indoor
32°F to 140°F with 0.1°F
resolution.
Indoor Weather
Station: Outdoor
-21.8 °F to 139.8°F with
0.1°F resolution.
Temp accuracy +/- 1°F
Measuring Range - Humidity
Indoor Weather
Station:
20% to 95% with 1%
resolution
(“—“ displayed when
outside this range)
Temperature Checking Interval
Indoor: Every 10 seconds
Outdoor: Three times in 10
minutes
Humidity Checking Interval
Outdoor: Three times in 10
minutes
Transmitting
range:
Maximum 80 feet (25m)
open space
Batteries—(Alkaline recommended)
Remote
Temp/Humidity
Sensor
2 x AA, 1.5V
Indoor Weather
Station
2 x AA, 1.5V
Dimensions: (H x W x D)
Indoor Weather
Station
7.5” x .3” x 1.12”
(excluding table stand)
(190 x 76 x 28 mm)
Remote
Temp/Humidity
Sensor
4.33” x 1.57” x 0.78”
(110 x 40 x 20 mm)
Rain Protector
2.25”Ø x 4.75” high
(57 mm∅x 120 mm
high)
Battery life Approximately 1 year

WARRANTY INFORMATION
La Crosse Technology provides a 1-year warranty on this weather station. Contact La Crosse Technology immediately upon
discovery of any defects covered by this warranty.
Before sending the weather station in for repairs, contact La Crosse Technology. The weather station will be repaired or replaced with
the same or similar model.
This warranty does not cover any defects resulting from improper use, unauthorized repairs, faulty batteries, or the weather stations
inability to receive a signal due to any source of interference.
LA CROSSE TECHNOLOGY WILL NOT ASSUME LIABILITY FOR INCIDENTAL, CONSEQUENTIAL, PUNITIVE, OR
OTHER SIMILAR DAMAGES ASSOCIATED WITH THE OPERATION OR MALFUNCTION OF THIS WEATHER STATION.
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
700 E. Main Street
Spring Grove, MN 55974
Phone: [phone]
Fax: [phone]
e-mail:
[email protected]
(warranty work)
[email protected]
(information on other products)
web:
www.lacrossetechnology.com
FCC DISCLAIMER
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 any interference received, including interference that may cause undesired
operation.
Freq. 433.92 MHz
La Crosse Technology
Made in China
WS-7212U
FCC ID: OMO-01RX (Receiver)
OMO-01TX (Transmitter)
080503
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.