WT-3165 La Crosse Technology
Radio Controlled Analog Clock
Quick set up instructions Welcome to the world of radio controlled timekeeping technology. We hope you will enjoy the convenience of never having to set your clock again and the confidence of always knowing the exact time.
Insert 1 fresh AA, LR6 1.5 volt ALKALINE battery according to the polarity marked on the case. Press time zone button to select a time zone. Replace the battery compartment cover.
THATS IT! During the night your clock will automatically set itself.

BATTERY COMPARTMENT

MANUAL TIME SET BUTTON PACIFIC TIME MOUNTAIN TIME
BATTERY COMPARTMENT EASTERN TIME DST ON/OFF BUTTON* CENTRAL TIME
For a better understanding of how and why your clock works please continue reading.
*DST (Daylight saving time) ON/OFF button
Pressing DST-ON/OFF button during DST the clock will switch to time without daylight saving. Pressing it again DST will be activated again. In areas where no DST is used you may deactivate DST by pressing the DST-OFF switch.
NOTHING IS MORE PRECISELY MEASURED THAN TIME!
And nothing keeps track of time more precisely and trouble free than La Crosse Technology radio controlled clocks. Since the beginning of time, man has been fascinated with the measurement of time and has devised more accurate machines to trap and measure time. Today, time is precisely measured in the United States by the most accurate clock in North America, the Atomic Clock of the US National Institute of Standards and Technology, Time and Frequency Division in Boulder, Colorado. A team of atomic physicists continually measures 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. This atomic clock regulates the WWVB radio transmitter located in Fort Collins, Colorado, where the exact time signal is continuously broadcast throughout the United States at 60 kHz to take advantage of stable long wave radio paths found in that frequency range. Radio waves at these low frequencies use the earth and the ionosphere as a wave-guide and follow the curvature of the earth for long distances. The built in antenna system will receive the WWVB signal anywhere in North America within 2000 miles of Fort Collins where long-wave radio reception is undisturbed. A microprocessor activates the receiver and processes the time signal from Fort Collins overnight. Through the radio signals, La Crosse Technology radio controlled clocks always keep precise time. The changeover from standard time to daylight saving time, and vice versa, takes place automatically with the same precision.

ADDITIONAL DETAILS

To set up your clock simply install one fresh AA, LR6 ALKALINE battery. Due to the nature of long wave radio signals it is normally not possible to receive a signal during the day so it is best to install the battery late in the evening. Select your time zone by pressing one of the four time zone buttons PT-Pacific Time, MT-Mountain Time, CT-Central Time, ET-Eastern Time. The time zone buttons may be pressed any time after installing the batteries. If multiple buttons are pressed the clock will set to the time zone selected last. If no time zone is selected the clock will default to Pacific Time. Another time zone can be selected during or after the clock has set itself. Your clock can only set itself to one of the four time zones stated above. For time zones outside of PT, MT, CT or ET you must manually set the time using the Manual Time set button on the back of the movement. Once the battery is installed the clock will begin searching for a signal. For the initial setting it is recommended to stand the clock in an upright position near a window. Within five
minutes the clock will either receive the WWVB signal and set itself to the exact time, or it will determine that the signal is not receivable at its current location and time of day. If a signal is not receivable it will fast-forward the hands to the 4, 8, or 12 oclock position and search for WWVB each hour until a signal is received. If the time is manually set the clock will continue to periodically search for a signal and automatically reset the hands when the signal is received. The La Crosse Technology clock is designed for indoor use only. Select a location to place your radio controlled clock where it will be at least six feet away from a TV, computer, air conditioner or other household electrical appliances. The optimal location is near a window. Windows facing Colorado provide the best signal. The WWVB time signal will easily penetrate masonry and wood framed buildings. WWVB will penetrate almost every residential building and most steel buildings if they have adequate windows. It is not possible, however, for WWVB to penetrate most indoor shopping malls and rooms in the center of large office buildings that do not have windows. In buildings that WWVB cannot penetrate you may set the time using the manual time set button. When the clock receives the WWVB signal it will automatically set the hands to the exact time. La Crosse Technology clocks do not receive or process radio controlled time signals from Germanys DCF 77, Japans J Ga AS, or Englands MSFs atomically regulated transmitters. La Crosse Technology clocks can be manually set and used anywhere. For more information on the NIST and radio controlled time, see www.boulder.nist.gov/timefreq/

SET THE TIME USING THE MANUAL TIME SET BUTTON
In some cases, the La Crosse Technology clock may not receive the WWVB signal due to atmospheric disturbances or hard to reach locations such as inside shopping malls. In this case, please use the Manual Time Set button, located at the back of the clock to manually set the time. To do this:

MANUAL TIME SET BUTTON

1. 2. 3.
Press and hold the Manual Set button. The second hand will move to the 12 position. Release the Manual Set button and again press and hold the Manual Set button. The minute and hour hands will fast-forward while the button is held. Keep holding the Manual Set button until the time is set as required. Release the button. About 3 seconds later, the second hands will start to move and the clock is now running with manual time.
Note: When the clock displays manual time, it will continue to try to receive the WWVB signal each hour.

TEMPERATURE AND HUMIDITY

The La Crosse Technology clock has two analog sensors that measure surrounding temperature and humidity. The temperature information is displayed in degrees Fahrenheit and Celsius, and humidity data is displayed in a percentage.

Humidity display in %

Outer ring displays temperature in degree Fahrenheit
Inner ring displays temperature in degree Celsius

TROUBLESHOOTING

The wonderful advantage of owning a La Crosse Technology radio controlled clock is that it is virtually trouble free. If the clock receives a clear signal it will set itself perfectly. If it does not receive a signal consider the following: Battery The La Crosse Technology clock must have a fresh battery to receive and process the time signal. Location - Try a different location, ideally near a window. It should be at least six feet from computers, TVs, air conditioners, other Radio-Controlled clocks and other electrical appliances that cause interference. Weather - Electrical storms between you and Colorado during the night will interfere with the WWVB signal.

DAYLIGHT SAVING TIME

The National Institute of Standards and Technology and WWVB encode a special DST bit in the WWVB transmission for DST. Your La Crosse Technology clock will read this information and automatically advance the hands one hour in the spring and eleven hours in the fall.

ARIZONA AND HAWAII

If you live in an area that does not recognize DST you must press the (unmarked) DST button for one second to deactivate your clocks DST program. To reactivate the DST program simply press the DST button again for one second.
Frequently Asked Questions
Q. How long will the battery last? A. A good AA alkaline battery will last over one year. If your clock is located in an area with little interference where it can quickly receive a signal the battery can last much longer than one year. Q. Can a La Crosse Technology clock be used outdoors? A. No, outdoor use is not recommended for this clock. Q. Can the La Crosse Technology clock be wired to control timing circuits? A. No.

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.

WARRANTY

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, Ltds 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. 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 owners 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 CHILDRENS 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 e-mail: support@lacrossetechnology.com (warranty work) sales@lacrossetechnology.com (information on other products) web: www.lacrossetechnology.com 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.

WT-MHz Radio Controlled Projection Alarm Instruction Manual
TABLE OF CONTENTS Topic Inventory of Contents/ Additional Equipment About WWVB Quick Set-Up Guide Detailed Set-Up Guide Battery Installation Program Mode Programming Sequence Function Buttons Manual Time Setting Time Zone Setting Daylight Saving Time (DST) Setting Features & Operations Features Radio-Controlled Time Projection EL Backlight Indoor Temperature Indoor Humidity Remote Temperature Time Alarm Changing Display Mode Mounting Maintenance & Care Troubleshooting Specifications Warranty and Contact Information

Page 4

13 14-15
INVENTORY OF CONTENTS 1) WT-5120 Alarm Clock 2) TX6U Remote temperature sensor 3) AC adapter/transformer 4) Instruction manual and warranty card. ADDITIONAL EQUIPMENT (not included) 1) Two fresh 1.5V AA batteries (optional for projection alarm clock) 2) Two fresh 1.5V AA batteries (for remote temperature sensor) FEATURES OF PROJECTION ALARM Operation of these features is in section III 1. 2. 3. 4. 5. 6. 7. Radio-controlled time Projection of time and/or remote temperature EL backlight Display of indoor temperature/humidity or alarm time Indoor temperature and humidity Remote outdoor temperature Time alarm
ABOUT WWVB (Radio Controlled Time) The NIST (National Institute of Standards and TechnologyTime 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 projection alarm. However, due to the nature of the Earths Ionosphere, reception is very limited during daylight hours. The projection alarm will search for a signal every night when reception is best. 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 (303)499-7111. 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 projection alarm 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.
QUICK SET-UP GUIDE Hint: Use good quality Alkaline Batteries and avoid rechargeable batteries. 1. Have the projection alarm and remote temperature sensor 3 to 5 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 projection alarm. 4. DO NOT PRESS ANY BUTTONS FOR 15 MINUTES. In this time the display and sensor will start to talk to each other and the display will show both the indoor temperature/humidity and an outdoor temperature. If the station does not display both temperatures and indoor humidity 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 sensor outdoors and set your time. The remote sensor should be placed in a dry, shaded area. The remote 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 will have up to 20 feet of resistance and an interior wall will have up to 10 feet of resistance. Your distance plus resistance should not exceed 80 ft. in a straight line. NOTE: Fog and mist will not harm your remote sensor but direct rain must be avoided. To complete the set up of your temperature station after the 15 minutes have passed please follow the steps beginning on page 6.

DETAILED SET-UP GUIDE

BATTERY INSTALLATION A. REMOTE TEMPERATURE SENSOR 1. Remove the battery cover. 2. Observing the correct polarity, install 2 AA batteries. The batteries will fit tightly (to avoid start-up problems make sure that they do not spring free during installation). 3. Replace the battery cover.

Battery Cover

PROJECTION ALARM 1. Remove the battery cover. 2. Observe the correct polarity, and install 2 AA batteries. 3. In addition or instead of inserting batteries, the AC adapter can be used. Simply plug the adapter into the receptacle on the underneath of the alarm clock and then plug in adapter. 4. Replace the battery cover. 5. The projector will activate and remain on if the alarm clock is plugged in. If only batteries are used, the projector will only be activated when a button is pressed. The projection is a red light, not harmful under normal usage, AC adapter although care should be taken to not look receptacle directly into the light. Notes: After the batteries have been installed a tone will sound, and the LCD (Liquid Crystal Display) will activate. The indoor temperature/humidity and the remote temperature will be displayed. Also, the time will appear as -:--. The WWVB search is automatically initiated, and a tower icon appears and flashes with the time colon (no tower icon will appear if the WWVB is too weak to be detected, and the time display will remain on -:--). While the WWVB search is being conducted various numbers will appear in the time display. After 15 minutes, the projection alarm will either display the WWVB time, or discontinue the search if the time is not found. If the search is cancelled -:-- will remain in the time LCD. The projection alarm will conduct a WWVB search every hour until the first signal is found. Once the WWVB time is found, a search is automatically conducted nightly at midnight. If the signal is found at midnight, the tower icon will remain, if not, another search will take place every hour (until 6:00 am) until the signal is found successfully. If no signal is found during this period, the tower icon will not appear and the clock will search again at 12:00 am the next night. The radio-controlled time receiver is located on the bottom side of the projection alarm. When using the AC adaptor be sure to keep the adapter cord away from the bottom side of the unit as if the wire is too close it can cause weakened reception sensitivity.
PROGRAM MODE To enter the Program Mode hold down the MODE/MIN button for 3 seconds, until the time flashes in the top of the display. The Program Mode Guide is laid out in a manner that allows you to program each function separately, or you can follow the instructions entirely to program the projection alarm. Complete programming is usually done for the initial set-up, and will require you to skip step 1 and 2 of programming sections D and E. To exit the setting mode simply wait approximately 10 seconds for the projection alarm to automatically return to normal operation. A. PROGRAMMING SEQUENCE 1. 2. 3. Manual Time Display Time Zone Setting Daylight Saving Time On/Off

FUNCTION BUTTONS There are 3 function buttons located on the front of the projection alarm and one on the top. The function buttons are labeled: AL/HOUR, light direction icon, MODE/MIN, and SNOOZE (the top bar).
Alarm Button (also adjusts the hours in time setting mode) C. MANUAL TIME SETTING 1. 2.

Display Direction

Mode Button (toggles between indoor temp/hum and alarm time. Also adjusts minutes in time setting mode
Hold down the MODE/MIN button for 3 seconds, the time will flash in the Time LCD. Press and release the AL/HOUR button to advance the hours and press and release the MODE/MIN button to advance the minutes. NOTE: A.M. or P.M. will be displayed to the left of the time to help identify the time.
Press and release the SNOOZE button to confirm the time setting and to advance to DST (Daylight Saving Time) setting.
TIME ZONE SETTING 1. 2. 3. Hold down the MODE/MIN button for 3 seconds, the time will flash in the Time LCD. Press and release the SNOOZE button to advance to the time zone selection. In the indoor temperature/humidity section of the LCD the time zone will flash.
Press and release the MODE/MIN button to select the appropriate time zone. There are 24 time zones to choose from (based relative to the international time standard of GMT (Greenwich Mean Time). NOTE: The U.S. time zones will show abbreviations as opposed to the numerical time zone indicator. For example Eastern Time will display ET when the Eastern Time Zone is selected
Press and release the SET button to confirm the time zone setting and to advance to the DST (Daylight Saving Time) setting. -4h -5h -6h -7h -8h -9h -10h -11h, -12h 0h -1h, -2h, -3h Atlantic Time Eastern Time (default setting) Central Time Mountain Time Pacific Time Alaskan Time Hawaiian Time Next two time zones West of HAW Greenwich Mean Time Three time zones West of GMT
DST (DAYLIGHT SAVING TIME) 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. 1. 2. 3. 4. 5. Hold down the MODE/MIN button for 3 seconds, the time will flash in the Time LCD. Press and release the SNOOZE button twice to advance to the DST setting. DST will appear in the indoor temperature/humidity LCD and ON or OFF will flash in the time LCD. Press and release the MODE/MIN button to toggle between DST ON and OFF. Press and release the SNOOZE button to confirm the DST setting and complete the set-up sequence.
FEATURES & OPERATIONS A. FEATURES 1. 2. 3. 4. 5. 6. 7. B. Radio-controlled time Projection of time and/or remote temperature LED backlight Display of indoor temperature/humidity or alarm time Indoor temperature and humidity Remote outdoor temperature Time alarm

RADIO-CONTROLLED TIME 1. The projection alarm will automatically search for the time signal upon initial set-up and every night. 2. When the signal is being received, there will be a tower icon flashing to the left of the time display. 3. When the time signal has been received successfully, the tower icon will remain steady until midnight. 4. The NIST (National Institute of Standards and TechnologyTime 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 projection alarm. 5. Due to the nature of the Earths Ionosphere, reception is very limited during daylight hours. The projection alarm will search for a signal every night when reception is best. 6. 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. 7. For more detail, visit http://www.boulder.nist.gov/timefreq.htm. To listen to the NIST time, call (303) 499-7111. 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. 8. It is possible that your projection alarm 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. PROJECTION OF TIME AND REMOTE TEMPERATURE 1. 2. 3. 4. 5. 6. When plugged into an AC outlet, the projection alarm will continuously project the time and remote temperature. When operating on batteries alone, the projection alarm will only project when the snooze button is pressed or the alarm is sounding. The projection will auto-focus for display from three to six feet away. A dark surrounding will be necessary to clearly see the projection. The projection alarm will automatically toggle between the time and outdoor temperature when projecting; either when the SNOOZE button is pressed or continuously when using the AC adaptor. The direction of the display can also be rotated 360 in 90 increments by pressing the directional button. There is no display on the LCD that signifies the direction. The projector case can be rotated 180 to further help orient the projected display.

EL BACKLIGHT 1. 2. The projection alarm has an EL backlight designed for night-viewing. This will light up for 4 seconds whenever the snooze button is pressed. The EL backlight cannot be turned on constantly; this would drain the batteries.
INDOOR TEMPERATURE 1. 2. 3. 4. The projection alarm measures indoor temperature with an internal sensor. This temperature is displayed in F. The indoor temperature will take time to adjust to the surrounding temperature as the sensor is inside the case. If the remote temperature is placed next to the projection alarm, more often than not the temperature will not be exact with one another. This is not a defect, but simply reflects the difference in measuring methods. The remote temperature is designed for changing temperature at a wide range.
INDOOR HUMIDITY 1. 2. 3. The projection alarm measures indoor humidity with an internal sensor. This humidity is displayed as a percentage (%). The indoor humidity will take time to adjust to the surrounding humidity as the sensor is inside the case.
REMOTE TEMPERATURE 1. 2. 3. The projection alarm comes with a remote temperature sensor. When set up properly, the projection alarm will receive and display the remote temperature. It is important to power up the sensor first, then the projection alarm. If batteries are removed in the remote, the projection alarm MUST be re-set by removing power sources and re-starting. The remote temperature is measured within the remote temperature and transmitted to the projection alarm. If outdoor temperature is desired, simply mount the remote sensor outside. It is recommended to mount the sensor on the North side of the house away from sources of heat or cold (away from direct sunlight, windows, vents, etc.). The range of the sensor is 80 feet in open space. While the signal is able to penetrate walls, it will decrease the range. Concrete and metal structures offer the most resistance. The sensor should not be mounted on a metal surface. The sensor and projection alarm should be kept away from other sources of possible interference including cordless appliances (telephones, baby monitors), microwave ovens, and other strong electrical appliances. The remote temperature is displayed in F.

4. 5. 6. 7.

TIME ALARM 1. SETTING THE ALARM a. Press and hold AL/HOUR button for three seconds until the alarm time is flashing. b. Press and release AL/HOUR to advance the hour, and MODE/MIN to advance the minute. The time will display PM if set to PM, and nothing if set to AM. c. The projection alarm will revert to normal operation when no buttons are pressed for 15 seconds. The alarm is now set and activated. ACTIVATING/DEACTIVATING THE ALARM a. After entering the alarm setting mode, the alarm is activated. b. To toggle between activating and deactivating the alarm, press the AL/HOUR button briefly. ((()))will be displayed above the time display when the alarm is activated. TURNING ALARM OFF (WHILE SOUNDING) a. While the alarm is sounding, press and release the SNOOZE bar to disable the alarm for 10 minutes. b. After the SNOOZE bar is pressed the alarm icon will flash. c. To disable the alarm for 24 hours, press and release any button other than SNOOZE or display direction buttons. NOTE: The alarm will sound for 84 seconds if the SNOOZE button is not pressed. The alarm speeds up twice, once after 20 seconds and again after 50 seconds.
CHANGING DISPLAY MODE (INDOOR TEMPERATURE/HUMIDITY OR ALARM TIME) There are two possible display modes in the indoor temperature/humidity section of the LCD (lower left). To change the display press and release the MODE/MIN button to toggle between the two modes.
MOUNTING THE REMOTE TEMPERATURE SENSOR The remote temperature sensor can be mounted in two ways: 1) Using screws 2) Using the adhesive tape. A. MOUNTING WITH SCREWS 1. 2. 3. 4. 5. B. Remove the mounting bracket from the remote temperature sensor. The bracket should snap off easily. Place the mounting bracket over the desired location. Through the three screw holes of the bracket, mark the mounting surface with a pencil. Where marked, start the screw holes into the mounting surface. Screw mounting bracket onto the mounting surface. Ensure that the screws are flush with the bracket. Snap the remote temperature sensor onto the mounted bracket.

MOUNTING WITH ADHESIVE TAPE 1. 2. 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 remote temperature sensor in the desired location, ensuring that the projection alarm clock can receive the signal.
MAINTENANCE & CARE A. Extreme temperatures, vibrations, 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 and damage the displays and casings. Do not submerge in water. Immediately remove all low powered batteries to avoid leakage and damage. Replace with new batteries only, and of recommended size. Opening the casings invalidates the warranty. Do not try to repair the units. Contact La Crosse Technology for Repairs.

C. D. E. F.

TROUBLESHOOTING Problem: Solution: Problem: Solution: Problem: Solution: Problem:

Solution:

Problem: Solution: Problem: Solution: Problem: Solution:
The Projection is faint 1) Use AC adapter 2) Darken surroundings 3) Use fresh batteries (if AC is not used) The LCD is faint. Replace the batteries. OFL appears in the indoor temperature LCD. 1) Move unit to an area with warmer or cooler surrounding temperature. 2) Current surrounding temperatures are outside measuring range. No reception of WWVB signal. 1) It may help reception to face the front of the projection alarm in the general direction of Ft. Collins, Colorado. 2) Wait overnight for signal. 3) Be sure the projection alarm is at least 6 feet 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 buttons. 5) If problems persist contact La Crosse Technology. Hour is incorrect (minute is correct). Be sure correct time zone and daylight saving time are selected. --.- appears in outdoor temperature LCD 1) Check batteries in remote 2) If batteries are replaced in remote, the unit must be re-started. Remove all batteries, and then follow start up procedure. OFL appears in the outdoor temperature LCD 1) Remote temperature is out of range. 2) Check batteries. 3) Interference from an outside source (cordless telephone, etc.) 4) Contact La Crosse Technology.

Note: For any questions not answered, contact La Crosse Technology with the contact information found at the end of this instructional manual.
SPECIFICATIONS FOR WT-5120 Temperature: Measuring range: Checking intervals: Humidity: Measuring range: Checking intervals: Power source: AC Adapter (included) Battery type: Battery life: Dimensions (H x W x D): Projection Alarm Clock Remote Temperature Sensor 3.5 x 5.5 x 2 in (90.6 x 140.3 x 48.5 mm) 5 x 1.5 x 1 in (128 x 40 x 23 mm) 14F to 99F with 0.2F resolution (indoor) -21.8F to 156.2F with 0.2F resolution (outdoor) Every 10 seconds indoor, 2 times in 10 minutes for remote temperature. % Every 10 seconds Input: 120VAC/60Hz Output: DC 3.2V/100MA Projection Alarm: 2 x AA, 1.5V (Alkaline) (optional) Sensor: 2 x AA, 1.5V (Alkaline) Approximately 12 months, depending on projection and backlight use
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, Ltds 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. 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 owners 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 CHILDRENS 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 e-mail: support@lacrossetechnology.com (warranty work) sales@lacrossetechnology.com (information on other products) web: www.lacrossetechnology.com
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.
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 WT-5120 FCC ID: OMO-01RX (Receiver), OMO-01TX (sensor) 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.