La Crosse Technology Clock WS8157U User Manual

WS-8157U  
RADIO-CONTROLLED CLOCK WITH OUTDOOR WIRELESS  
TEMPERATURE  
Instruction Manual  
 
GLOSSARY OF COMMON TERMS  
NIST*  
The National Institute of Standards and Technology maintains the primary frequency standard for the  
United States. The NIST also coordinates the United States time and frequency standards with other  
world standards. The NIST provides time and frequency services for United States clientele.  
WWVB*  
The WWVB is an AM radio station in Ft. Collins, Colorado, managed by the NIST. The WWVB’s  
function is to broadcast time-of-day information derived from the NIST atomic clock, located in Boulder,  
Colorado.  
ATOMIC CLOCK*  
An atomic clock is an extremely accurate time device measuring time by the movements of electrons in  
cesium atoms. The NIST atomic clock is one of the most precise clocks in the world, accurate to 10  
billionths of one second. The NIST’s atomic clock contributes to the international group of clocks  
calculating the Coordinated Universal Time (UTC)—the official world time.  
RADIO CONTROLLED TIME*  
A radio controlled time device is often confused with an atomic clock. However, a radio controlled time  
device receives its time information from the atomic clock each day through an internal antenna. The  
radio controlled time device searches for an exact time signal every night when the signal from the  
WWVB is the strongest. The signal can be received up to 2,000 miles away through a radio controlled  
time device.  
LCD  
“LCD” is an acronym for ”Liquid Crystal Display”. This is a common type of display screen used in  
televisions, computers, watches, and digital clocks.  
CELSIUS (°C)  
Celsius is metric system’s unit of measurement used to calculate temperature.  
FAHRENHEIT (°F)  
Fahrenheit is the common unit of measurement used to calculate temperature the United States.  
*For more information regarding the NIST, WWVB, atomic clock, and radio controlled time, please visit  
2
 
FEATURES:  
RADIO-CONTROLLED CLOCK:  
Hanging holes  
LCD1  
display  
Function keys  
Battery cover  
Foldable stand  
LCD2  
display  
WWVB Radio controlled time with manual time setting  
Time reception ON/OFF  
12/24 hour time display  
Time display: hour, minute, second  
Alarm setting with snooze function  
Calendar display  
Weekday display (4 languages to choose from: English, French, Spanish and German)  
Time zone setting  
Daylight savings time ON/OFF option (DST)  
LCD contrast setting  
ºC or ºF temperature display selectable  
Indoor temperature display  
Outdoor temperature display via 433MHz transmission  
Wall mount or freestanding  
Weather forecast for next 12 to 20 hours based on changing air pressure  
OUTDOOR TEMPERATURE TRANSMITTER:  
Remote transmission of  
outdoor temperature to the  
radio-controlled clock by  
433 MHz signals  
Holder  
Wall mounting case  
Battery Cover  
3
 
TO INSTALL AND REPLACE BATTERIES IN THE TEMPERATURE  
TRANSMITTER(INSTALL BATTERIES IN TRANSMITTER BEFORE INSTALLING  
BATTERIES IN RADIO-CONTROLLED CLOCK)  
The transmitter uses 2 x AA,1.5V batteries. To install and replace the batteries, please follow  
the steps below:  
1.  
2.  
3.  
Remove the battery cover by pushing down towards bottom of transmitter and sliding  
cover out.  
Insert the batteries, observing the correct polarity (see marking inside battery  
compartment).  
Replace the battery cover on the unit.  
ALKALINE BATTERIES ARE RECOMMENDED FOR USE IN BOTH UNITS. AVOID USING  
RECHARGEABLE BATTERIES.  
TO INSTALL AND REPLACE BATTERIES IN THE RADIO-CONTROLLED  
CLOCK  
The radio-controlled clock uses 2 x AA,1.5V batteries. To install and replace the batteries,  
please follow the steps below:  
1.  
Insert finger or other solid object in the space at the bottom center of the battery  
compartment and lift up to remove the cover.  
2.  
3.  
Insert batteries observing the correct polarity (see marking inside battery compartment).  
Replace compartment cover.  
DO NOT SET THE CLOCK.  
BATTERIES CHANGE:  
For best performance, batteries should be replaced at least once a year to maintain the best  
running accuracy. Ensure that the batteries used are new and the correct size.  
Please help in the preservation of the environment and return used batteries  
to an authorized depot.  
4
 
SETTING-UP:  
Alkaline batteries are recommended for use in both units. Avoid using  
rechargeable batteries.  
NOTE: Do not set-up the clock until the outdoor temperature is displayed.  
1.  
Place batteries in the outdoor transmitter first, then into the radio-controlled clock.  
DO NOT PRESS ANY BUTTONS FOR 15 MINUTES.  
2.  
After the 15 minutes both the Indoor and Outdoor areas on your clock should have a  
temperature showing. If not, remove both sets of batteries, wait 15 minutes and repeat  
step one.  
3.  
4.  
After the clock receives the outdoor temperature, set your time zone using the manual  
settings below. The default (factory) time zone is Eastern Standard Time.  
After the clock receives the outdoor temperature the WWVB time code reception will  
automatically start. This reception typically takes between 10-15 minutes in good  
conditions. If after 15 minutes the WWVB time has not been received, use the “SET” key  
to manually enter the set-up mode and change either the time or date in order to activate  
the WWVB reception (see manual settings below). The clock will then automatically  
attempt to receive the WWVB time from 12:00 am through 6:00 am each day (attempts  
WWVB reception every full hour within this time frame). When this is successful, the  
received time will override the manually set time. The date is also updated with the  
received time (Please refer to notes on “Manual time setting”).  
Note:  
In the event of changing batteries of the unit, ensure that the batteries do not spring free from  
the contacts. Always wait at least 15 minutes after removing the batteries before reinserting,  
otherwise start up and transmission problems may occur.  
FUNCTION KEYS  
The radio-controlled clock has four easy to use keys:  
SET key  
:
To enter into the set mode for the following functions: LCD contrast, time  
zone, DST ON/OFF (daylight saving time), time reception ON/OFF, language,  
12/24 hour, ºC or ºF temperature, hour, minute, year, month and day display  
To toggle between the second, temperature or weekday display  
To change any values in manual set mode  
To enter into the alarm set mode  
To set the alarm ON/OFF  
To activate the snooze function during alarm  
+ key  
:
:
:
ALM key  
SNZ key  
5
 
To display the alarm time in normal mode display  
To exit the setting modes  
LCD SCREEN DESCRIPTIONS  
The radio-controlled clock's LCD is divided into 2 sections and once the batteries are inserted,  
all the segments will light up briefly before displaying the information for time, date, indoor and  
outdoor temperatures.  
Radio reception icon  
Alarm icon  
WWVB time  
Indoor temperature  
Date  
Outdoor temperature display  
Weekday  
WEATHER FORECAST  
The weather forecasting feature is estimated to be 75% accurate. The weather forecast is  
based solely upon the change of air pressure over time. The WS-8157U averages past air-  
pressure readings to provide an accurate forecast, creating a necessity to disregard all weather  
forecasting for 12-24 hours after the unit has been set-up, reset, or moved from one altitude to  
another (i.e. from one floor of a building to another floor). In areas where the weather is not  
affected by the change of air pressure, this feature will be less accurate.  
Weather Icons  
There are 3 possible weather icons that will be displayed in the LCD 2:  
Sunny—indicates that the weather is expected to improve (not that the weather will be sunny).  
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Sun with Clouds—indicates that the weather is expected to be fair (not that the weather will be  
sunny with clouds).  
Clouds with Rain—indicates that the weather is expected to get worse (not that the weather will  
be rainy).  
The weather icons change when the unit detects a change in air pressure. The icons change in  
order, from “sunny” to “partly sunny” to “cloudy” or the reverse. It will not change from “sunny”  
directly to “rainy”, although it is possible for the change to occur quickly. If the symbols do not  
change then the weather has not changed, or the change has been slow and gradual.  
Weather Tendency Arrows  
Other possible displays in LCD 2 are 2 weather tendency arrows, one that points up (on the left  
side of the forecast) and one that points down (on the right side of the forecast). These arrows  
reflect current changes in the air pressure. An arrow pointing up indicates that the air pressure  
is increasing and the weather is expected to improve or remain good. An arrow pointing down  
indicates that the air pressure is decreasing and the weather is expected to become worse or  
remain poor. No arrow means the pressure is stable.  
MANUAL SETTINGS  
Note: If the radio-controlled clock has already successfully received the WWVB time  
signal and displays the correct time and date, then the Manual settings can be skipped.  
After completion of the above described procedures in “Setting-up” the manual setting modes  
can be entered by pressing and holding the SET key for 3 seconds. The following settings can  
now be programmed:  
LCD contrast setting  
Time zone setting  
DST ON/OFF  
Time reception ON/OFF  
Language display setting  
12/24 hour time display setting  
ºC or ºF setting  
Manual time setting  
Year setting  
Month setting  
Date setting  
7
 
LCD CONTRAST SETTING  
After entering the manual setting mode as described above, the LCD contrast can be set within  
8 levels, from LCD 0 to LCD7 (Default setting is LCD 5):  
1.  
2.  
The LCD contrast digit will start fashing in LCD2. (Default setting "5“).  
Select the desired LCL contrast level by pressing and releasing the + key. The level can  
be set between 0-7.  
3.  
Press and release the SET key to enter the "Time Zone Setting“.  
TIME ZONE SETTING  
The time zone can be set between the +12 to –12 hour or Greenwich Mean Time (GMT) range  
in LCD2. To do this:  
1.  
The time zone (LCD2) will start flashing (Default setting "-5“). Select the desired time zone by  
pressing and releasing the + key.  
Note: The time zones from –4 to –10 hours will be displayed with 3 characters  
abbreviations:  
-4 ATL (Atlantic time),  
-5 EST (Eastern time; default time zone),  
-6 CST (Central time),  
-7 MST (Mountain time),  
-8 PST (Pacific time),  
-9 ALA (Alaska time),  
-10 HAW (Hawaii time).  
"GMT” will be displayed if set to GMT (0).  
Press and release the SET key to enter the “DST Setting“.  
2.  
DST SETTING (daylight saving time)  
1.  
2.  
The ON digit will start flashing on LCD1. Set the DST ON or OFF by pressing the + key.  
Press and release the SET key to enter the “Time Reception Setting“.  
Note:  
The DST default is “ON”, meaning that the WWVB will automatically change the time 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”.  
8
 
TIME RECEPTION SETTING (ON/OFF)  
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.  
2.  
The ON digit will start flashing on LCD1. Set the RCC ON or OFF by pressing the + key.  
Press and release the SET key to enter the “Language 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 icon will not be displayed on the LCD.  
LANGUAGE SETTING  
The weekdays can be displayed in LCD2 with the pre-set languages: US English, French,  
Spanish and German.  
1.  
2.  
Set the desired language for the weekday display in LCD 2 by use of the + key.  
Press and release the SET key to enter the mode “12/24 Time Display Setting”.  
12/24 HOURS TIME DISPLAY SETTING  
1.  
The “12h” or “24h” will start flashing in LCD2 (Default setting 12h). Select the desired  
time display mode by use of the + key.  
2.  
Press and release the SET key to enter the “ºC/ºF Temperature Setting“.  
°C OR °F TEMPERATURE SETTING  
1.  
The characters “°F” or “°C” will start flashing on LCD2 (Default setting °F). By use of the  
+ key select “°C” for temperature display in degrees Celsius or “°F” for degrees  
Fahrenheit.  
2.  
Press and release the SET key to enter the “ºManual Time Setting”.  
MANUAL TIME SETTING  
In case the radio-controlled clock is not able to detect the WWVB-signal (disturbances,  
transmitting distance, etc.), the time can be manually set. The clock will then work as a normal  
Quartz clock.  
Note: In 12-hour mode the time will be displayed with an additional PMfor the time from  
12:00 noon until 11:59.  
1.  
The hour digits will start flashing on LCD1.  
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2.  
Set the desired hours by pressing and releasing the + key followed by pressing the SET  
key.  
3.  
4.  
Now the minute digits will start flashing.  
Set the desired minutes by pressing and releasing the + key. If the + key is held, the units  
will increase by 5.  
5.  
Press and release the SET key to move to the “Year Setting”.  
Note:  
The unit will still try to receive the signal every day despite it being manually set. 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.  
WWVB time reception takes place from 12:00 am through 6:00 am each day (attempts WWVB  
reception every full hour within this time frame). When the time signal is received for example at  
1:00 am, the radio-controlled clock will not attempt to receive the WWVB signal for the  
remaining hours until 6:00 am. Therefore, the next signal attempt will take place between 12:00  
am and 6:00 am the next day. The other times WWVB reception takes place, are upon setup  
and after manual time set exiting mode. Reception is generally not possible during daylight  
hours due to the interference of the sun.  
YEAR SETTING  
The year can be selected sequentially from 2003 to 2029 and will then start over again (default  
setting 2005). Only the last 2 digits of the year will be visible on LCD2. The year will only  
appear in the manual setting mode.  
1.  
2.  
The year digits will start flashing on LCD2. Select the desired year by use of the + key.  
Press and release the SET key to switch to the “Month Setting”.  
MONTH SETTING  
1.  
2.  
The month digits on LCD2 will start flashing. Set the desired month by use of the + key.  
Press and release the SET key to move to the mode “Date Setting”.  
DATE SETTING  
1. The digits for the date will start flashing on LCD2 (Default setting 1). Set the desired date  
by use of the + key.  
10  
 
Note: The date can only be set in conjunction with the selected month. For example, it is  
not possible to set the date 30 if the month of February is selected.  
Press and release the SET key to exit the setting mode and switch back to the normal  
display mode.  
2.  
EXIT THE MANUAL SETTING MODES  
To return to the normal display mode from anywhere in manual setting mode simply press  
the SNZ key anytime.  
If no keys are pressed for at least 15 seconds in setting mode, the radio-controlled clock  
will automatically switch back to normal display mode.  
CHANGING THE DISPLAY MODE (DAY, SECONDS, AND TEMPERATURES)  
There are 4 possible display modes to view the day, seconds, and temperatures.  
The indoor temperature/outdoor temperature/month&date/weekday is the default.  
To change the display:  
1.  
2.  
3.  
Press the + key. The display should now show the seconds/outdoor temperature/  
month&date/weekday.  
Press the + key a second time and the display will now show the indoor  
temperature/seconds/month&date/weekday.  
Press the + key a third time and the display will now show the indoor temperature/outdoor  
temperature/month&date/seconds.  
Press the + key a fourth time and the display will return to the normal display.  
ALARM SETTING  
To enter into the alarm setting mode:  
1.  
2.  
3.  
4.  
5.  
Hold the ALM key for 4 seconds. The hour digits start flashing.  
Press and release the + key to set the hour.  
Press and release the ALM key to set the minutes. The minute digits start flashing.  
Press and release the + key to set the minutes.  
Press and release again the ALM key to exit the Alarm setting mode or wait for 15  
seconds automatic timeout.  
11  
 
TO DEACTIVATE THE ALARM:  
Alarm icon  
((())) (ON)  
The alarm will be automatically ON when the alarm time is set. To deactivate the alarm (OFF),  
press and release once the ALM key in normal mode display. The alarm icon will disappear, the  
alarm is now off.  
SNOOZE SETTING  
The snooze can only be activated during alarm time for a snooze duration of 10 minutes by  
pressing the SNZ key on the back of the clock  
OUTDOOR TEMPERATURE TRANSMITTER:  
The temperature is measured and transmitted to the radio-controlled clock every 1 minute. The  
radio-controlled clock will update the temperature display every 5 minutes.  
The range of the outdoor temperature transmitter may be affected by the temperature. At cold  
temperatures the transmitting distance may be decreased. Please bear this in mind when  
positioning the transmitter. Also the batteries may be reduced in power during periods of  
extreme cold temperatures.  
433MHz RECEPTION CHECK FOR OUTDOOR TEMPERATURE TRANSMITTER  
The radio-controlled clock will receive the temperature data within 4 minutes. If the temperature  
data is not being received 4 minutes after setting up (the display shows “- - -”), then please  
check the following points:  
1.  
The distance of the radio-controlled clock or outdoor temperature transmitter should be at  
least 6 feet (2 meters) away from any interfering sources such as computer monitors or  
TV sets.  
2.  
3.  
Avoid placing the receiver onto or in the immediate proximity of metal window frames.  
Using other electrical products such as headphones or speakers operating on the same  
signal frequency (433MHz) may prevent correct signal transmission and reception.  
Neighbors using electrical devices operating on the 433MHz signal frequency can also  
cause interference.  
4.  
12  
 
Note:  
When the 433 MHz signal is received correctly, do not re-open the battery cover of either the  
outdoor temperature transmitter or radio-controlled clock, 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 maximum transmission range is 330 feet (100 meters) from the outdoor temperature  
transmitter to the radio-controlled clock (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).  
Note:  
In case the radio-controlled clock is not able to detect the WWVB-signal (disturbances,  
transmitting distance, etc.), the time can be manually set (please refer to notes on Manual time  
setting)  
.
POSITIONING  
Before permanently mounting ensure that the radio-controlled clock is able to receive WWVB  
signals from the desired location. Also, extreme and sudden changes in temperature will  
decrease the accuracy of the radio-controlled clock, and changes in elevation will result with  
inaccurate temperatures readings for the next 12 to 24 hours. These changes will require a 12  
to 24 hour wait before obtaining reliable data.  
To achieve a true temperature reading, avoid mounting where direct sunlight can reach the  
outdoor temperature transmitter. It is recommended to mount the outdoor temperature  
transmitter on a North-facing wall or in any well shaded area. The maximum transmitting range  
is 330 feet (100 meters) obstacles such as walls, concrete, and large metal objects can reduce  
the range.  
Place both units in their desired location, and wait approximately 10 minutes before  
permanently mounting to ensure that there is proper reception. The outdoor temperature  
transmitter is not waterproof and should not be placed anywhere it will become submerged in  
water or be directly in the rain.  
13  
 
POSITIONING THE RADIO-CONTROLLED CLOCK:  
There are two possible ways to mount the radio-controlled clock:  
use of the foldout table stand, or  
wall mounting  
FOLDOUT TABLE STAND  
The foldout table stand leg is located on the backside. Pull the stand out from  
the bottom center edge of the radio-controlled clock, below the battery  
compartment. Once the foldout table stand is extended, place the radio-  
controlled clock in an appropriate location.  
WALL MOUNTING  
1) Using a straightedge, horizontally space at 2-3/4 of an inch (70 mm)  
three screw positions on a wall.  
2) Install three mounting screws (not included) into a wall within  
transmission range—leaving approximately 3/16 of an inch (5mm)  
extended from the wall.  
3) Place the radio-controlled clock onto the screws, using the hanging  
holes on the backside. Gently pull the radio-controlled clock down to  
lock the screws into place.  
Note:  
Always ensure that the radio-controlled clock locks onto the screws before  
releasing.  
14  
 
POSITIONING THE OUTDOOR TEMPERATURE TRANSMITTER  
The outdoor temperature transmitter can be mounted in two ways:  
with the use of screws, or  
using the adhesive tape.  
MOUNTING WITH SCREWS  
1)  
Remove the mounting bracket from the outdoor temperature  
transmitter.  
2)  
Place the mounting bracket over the desired location. Through the  
three screw holes of the bracket, mark the mounting surface with a  
pencil.  
3)  
4)  
Where marked, start the screw holes into mounting surface.  
Screw mounting bracket onto the mounting surface. Ensure that the  
screws are flush with the bracket.  
MOUNTING WITH ADHESIVE TAPE  
1)  
2)  
3)  
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.  
Remove the protective strip from one side of the tape. Adhere  
the tape to the designated area on the back of the mounting  
bracket.  
Remove the protective strip from the other side of the tape.  
Position the outdoor temperature transmitter in the desired  
location, ensuring that the radio-controlled clock can receive  
the signal.  
15  
 
TROUBLESHOOTING:  
Problem:  
Solution:  
Problem:  
Solution:  
The LCD is faint.  
1) Replace the batteries.  
No reception of WWVB signal  
1) It may help reception to face the front of the radio-controlled clock in the  
general direction of Ft. Collins, Colorado.  
2) Wait overnight for signal.  
3) Be sure the radio-controlled clock is at least 6 feet (2 meters) from any  
electrical devices, i.e. TV sets, computers, or other radio controlled clocks.  
4) Remove batteries for five minutes, reinsert and leave the unit alone  
overnight without pressing any keys.  
Problem:  
Solution:  
Problem:  
Solution:  
Hour is incorrect (minute and date are correct).  
1) Be sure the correct time zone and daylight saving time are selected.  
"OF.L“ appears in the indoor temperature section of the LCD  
1) Move the radio-controlled clock to an area with warmer or cooler  
surrounding temperature. Current surrounding temperatures are outside  
measuring range.  
Problem:  
Solution:  
"--.-" appears in the outdoor temperature section of the LCD.  
1) Remove the batteries of both units for one minute, then reinsert them  
again. Make sure the batteries are new and fresh.  
2) Move the radio-controlled clock closer to the transmitter or place the  
transmitter closer to the radio-controlled clock. Make sure the clock is at a  
receivable range from the transmitter.  
3) Move the units to another location. Interferences from other electrical  
devices operating on the same signal frequency (433MHz) may prevent  
correct signal transmission and reception.  
Problem:  
Solution:  
"OF.L“ appears in the outdoor temperature section of the LCD.  
1) Wait until the current surrounding temperature cools down or increases.  
Current temperature is outside of the measuring range of the transmitter.  
The outdoor temperature will be displayed again once the current  
surrounding temperature is within the range of the transmitter.  
16  
 
CARE AND MAINTENANCE:  
Avoid placing the units in areas prone to vibration and shock as these may cause damage.  
Avoid areas where the units can be exposed to sudden changes in temperature, i.e. direct  
sunlight, extreme cold and wet/moist conditions as these will lead to rapid changes which  
reduces the accuracy of readings.  
When cleaning the LCD and casing, use a soft damp cloth only. Do not use solvents or  
scouring agents.  
Do not submerge the units into water.  
Immediately remove all low powered batteries to avoid leakage and damage. Replace only  
with new batteries of the recommended size.  
Do not make any repairs to the units. Please return it to the original point of purchase.  
Opening and tampering with the units may invalidate the warranty.  
SPECIFICATIONS:  
Temperature measuring range  
Indoor:  
+14.1ºF to +157.8ºF with 0.2ºF resolution  
-9.9ºC to +69.9ºC with 0.1ºC resolution  
("OF.L" displayed if outside this range)  
-21.8ºF to +157.8ºF with 0.2ºF resolution  
-29.9ºC to +69.9ºC with 0.1ºC resolution  
("OF.L“ displayed if outside this range)  
Outdoor:  
Temperature checking interval  
Indoor:  
every 15 seconds  
Outdoor:  
every 5 minutes  
Transmission distance  
maximum 330 feet (100 meters) in open field, depending upon  
surrounding structures, mounting location and possible  
interfering sources  
Power source (Alkaline batteries recommended)  
Radio-controlled clock:  
Transmitter:  
Battery life:  
2 x AA, 1.5V batteries  
2 x AA, 1.5V batteries  
about 12 months  
Dimensions (L x W x H)  
Radio-controlled clock:  
Transmitter:  
12.20“ x 1.18“ x 8.03“ / 310 x 30 x 204mm  
1.57“ x 0.9“ x 5.04“ / 40 x 23 x 128 mm  
17  
 
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 reasonable return shipping charges to the owner of the product.  
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  
18  
 
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, Ltd  
2809 Losey Blvd. S.  
La Crosse, WI 54601  
Phone: 608.782.1610  
Fax: 608.796.1020  
(warranty work)  
(information on other products)  
web:  
Questions ? Instructions? Please visit:  
19  
 
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-8157U  
FCC ID: OMO-01RX (Receiver)  
OMO-01TX (Transmitter)  
082905  
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.  
20  
 

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