WT-5431
433 MHz
Radio Controlled Projection Alarm
Instruction Manual
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INVENTORY OF CONTENTS
1) WT-5431 Alarm Clock
2) TX6U Remote temperature sensor
3) AC adapter/transformer (6V)
4) Instruction manual and warranty card.
ADDITIONAL EQUIPMENT (not included)
1) Three fresh 1.5V AA batteries (optional for alarm clock)
2) Two fresh 1.5V AA batteries (for remote sensor)
FEATURES OF PROJECTION ALARM
Operation of these features is in section III.
1. Radio-controlled time and date
2. Projection of time and/or remote temperature
3. EL backlight
4. Six modes of date/seconds/temperature display
5. Indoor temperature
6. Remote outdoor temperature
7. Dual alarms
8. Adjustable snooze
ABOUT WWVB (Radio Controlled Time)
The NIST (National Institute of Standards and Technology—Time and Frequency
Division) WWVB radio station is located in Ft. Collins, Colorado, and transmits the exact
time 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 Earth’s 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-
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.
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QUICK SET-UP GUIDE
Hint: Use good quality Alkaline Batteries and avoid rechargeable batteries.
1. Have the indoor station and outdoor remote 3 to 5 apart.
2. Batteries should be out of both units for 10 minutes.
3. Place the batteries into the outdoor remote first then into the indoor station.
(All outdoor remotes must be started before the indoor station)
4. DO NOT PRESS ANY BUTTONS FOR 10 MINUTES.
In this time the display and sensor will start to talk to each other and the display will
show both the indoor temperature and an outdoor temperature. If the station does not
display both temperatures after the 10 minutes please retry the set up as stated above.
After both indoor and outdoor temperatures are displayed for 10 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 20 to 30 feet of resistance and an interior wall will
have 10 to 20 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 10 minutes have passed
please follow the steps on page 7.
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DETAILED SET-UP GUIDE
Important: Insert batteries into the sensor first, then into the alarm clock. Do not
press any buttons until remote temperature is displayed.
II. BATTERY INSTALLATION
A. REMOTE TEMPERATURE SENSOR
1. Remove the battery cover. Observing the correct
polarity, install 2 AA batteries. The batteries will
fit tightly (to avoid start-up problems make sure
Battery
Cover
that they do not spring free during installation).
2. Replace the battery cover.
B. PROJECTION ALARM
1. Remove the battery cover.
2. Observe the correct polarity,
and install 3 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,
although care should be taken to not look directly into the light.
Note: After the batteries have been installed a tone will sound, and the LCD
(Liquid Crystal Display) will activate. The indoor temperature and the
remote temperature will be displayed (within three minutes). 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 10 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
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is found during this period, the tower icon will not appear and the clock will
search again at 12:00 am the next night.
6. Either wait for the WWVB reception or manually set the time and date,
making sure to set the correct time zone.
III. PROGRAM MODE
To enter the Program Mode hold down the “SET” button for 1 second, until the time
zone (“-5” default) flashes in the lower left. Press the “SNOOZE” button at any
time to exit the Program Mode, or wait approximately 15 seconds for the projection
alarm to automatically return to normal operation.
A. PROGRAMMING SEQUENCE
1. Time Zone Setting
2. Daylight Saving Time ON/OFF
3. Adjustable Snooze
4. Hour Setting
5. Minute Setting
6. Year Setting
7. Month Setting
8. Date Setting
9. Day Setting
10. 12/24-hour Mode
B. FUNCTION BUTTONS
There are 7 function buttons located on the front of the projection alarm and one
on the top. The function buttons are labeled: ALM1/HOUR, ALM2/MIN, light
intensity icon, DISPL, light direction icon, SET, MODE/+, and SNOOZE (the
top bar).
C. TIME ZONE SETTING
1. Hold down the “SET” button for 1 second, the time zone (“-5” default) will
flash in the Date LCD.
2. Press and release the “+” button to select the appropriate time zone. There
are 13 time zones to choose from (based relative to the international time
standard of GMT (“Greenwich Mean Time).
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-4h
Atlantic Time
-5h
-6h
Eastern Time (default setting)
Central Time
-7h
Mountain Time
-8h
Pacific Time
-9h
Alaskan Time
-10h
Hawaiian Time
-11h, -12h
0h
-1h, -2h, -3h
Next two time zones West of HAW
Greenwich Mean Time
Three time zones West of GMT
3. From –5h to –8h, a US map with the highlighted time zone will also be
displayed to the right of the time display.
4. Press and release the “SET” button to confirm the time zone setting, and to
advance to DST (Daylight saving time) setting.
D. 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. Press and release the “+” button to turn the DST off, as will be indicated by
the display of “OFF” in the time LCD.
2. Press and release the “SET” button to confirm the DST setting, and to
advance to select the length of the snooze.
E. ADJUSTABLE SNOOZE TIME
Note: The snooze length can be adjusted from 1 minute to 59 minutes. This
duration refers to the length of time the alarm will be disabled when the
“SNOOZE” bar is pressed. If set to “0”, activating the snooze will turn off the
alarm for 24 hours.
1. Press and release the “+” button to advance the snooze time from 0 (off ) to
59 minutes.
2. Press and release the “SET” button to confirm the snooze setting, and to
advance to manually set the time.
F. TIME SETTING
Note: When the WWVB signal is found, that time will over-ride the manually set
time.
1. Press and release the “+” button to select the hour. Note: when setting the
hour, “PM” will appear to the left of the hour display, if it is AM nothing
will be displayed.
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2. Press and release the “SET” button to confirm the hour setting, and to shift
to select the minutes.
3. Press and release the “+” button to select the minutes.
4. Press and release the “SET” button to confirm the time setting, and to
advance to manually set the date.
G. DATE SETTING
Note: When the WWVB signal is found, that date will over-ride the manually set
date.
1. Press and release the “+” button to select the year.
2. Press and release the “SET” button to confirm the year, and to set the
month.
3. The month will flash. Press and release the “+” button to select the
appropriate month.
4. Press and release the “SET” button to confirm the month, and to set the
date.
5. The date will flash. Press and release the “+” button to select the
appropriate date.
6. Press and release the “SET” button to confirm the date, and to set the
weekday.
7. The weekday will flash. Press and release the “+” button to select the
appropriate weekday.
8. Press and release the “SET” button to confirm the calendar settings, and to
advance to select either 12 or 24-hour time display.
H. 12/24-HOUR SETTING/ SELECTING °F OR °C
Note: Setting to the 24 hour mode (also known as Military Time) will also
change the temperature to display in °C instead of °F.
1. Press and release the “+” button to toggle between 12 and 24 hour time.
2. Press release the “SET” button to confirm the 12/24-hour time display, and
to return to normal operation.
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IV. FEATURES & OPERATIONS
A. FEATURES
1. Radio-controlled time and date
2. Projection of time and/or remote temperature
3. EL backlight
4. Six modes of date/seconds/temperature display
5. Indoor temperature
6. Remote outdoor temperature
7. Dual alarms
8. Adjustable snooze
B. RADIO-CONTROLLED TIME AND DATE
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 Technology—Time 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 Earth’s 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.
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.
9
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C. PROJECTION OF TIME AND/OR REMOTE TEMPERATURE
1. When plugged into an AC outlet, the projection alarm can continuously
project the time and/or remote temperature.
2. When operating on batteries alone, the projection alarm will only project
when a button is pressed.
3. The projection will auto-focus for display from three to six feet away. A
dark surrounding will be necessary to clearly see the projection.
4. The default is projecting time (Hour and Minutes). The projection alarm
can be se to project the time (M0), remote temperature (M1), or alternating
between time and remote temperature (M2) by pressing the “DISPL”
button. The selected display mode will flash on the lower left as “M0”,
“M1” or “M2”.
5. 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.
6. The projector case can be rotated 180° to further help orient the projected
display.
7. The intensity of the projection can be adjusted to three different settings as
Light intensity
Display Mode Display Direction
well as turned “off” by pressing the light Intensity button. When turned off,
the projection will only come on when a button is pressed. The intensity
cannot be set for the projected display when set to “off”. When only
batteries are used, the intensity setting is set to “off” with no other options.
D. EL BACKLIGHT
1. The projection alarm has an EL backlight designed for night-viewing. This
will light up for 2 seconds whenever a button is pressed.
2. The EL backlight cannot be turned on constantly; this would drain the
batteries and burn out the EL.
E. INDOOR TEMPERATURE
1. The projection alarm measures indoor temperature with an internal sensor.
2. This temperature is displayed in °F or °C, depending on the time format (12
or 24 hour mode). When in 12-hour format, the temperature will be in °F.
When in 24-hour mode, the temperature will be in °C.
3. The indoor temperature will take time to adjust to the surrounding
temperature as the sensor is inside the case.
4. 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
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defect, but simply reflects the difference in measuring methods. The remote
temperature is designed for changing temperature at a wide range.
F. REMOTE TEMPERATURE
1. The projection alarm comes with a remote temperature sensor. When set up
properly, the projection alarm will receive and display the remote
temperature.
2. 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.
3. 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.).
4. 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.
5. The sensor should not be mounted on a metal surface.
6. 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.
7. The remote temperature is displayed in °F or °C, depending on the time
format (12 or 24-hour mode). When in 12-hour format, the temperature will
be in °F. When in 24-hour mode, the temperature will be in °C.
G. TIME ALARM
Alarm 2 activated
The projection alarm has two separate alarms
for time, “ALM1” and “ALM2”. The alarms
have a different sound; ALM1 increases in
volume after 25 seconds, and again after 50
seconds. ALM2 is a constant volume. The total
duration is 96 seconds for each alarm.
1. SETTING THE ALARM
a. Press and hold “ALM1” OR “ALM2” for two seconds until the alarm
time is flashing.
b. Press “ALM1/HOUR” to advance the hour, and “ALM2/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.
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2. ACTIVATING/DEACTIVATING THE ALARM
a. After entering the alarm setting mode, the alarm is activated (either
ALM1 or ALM2).
b. To toggle between activating and deactivating the alarm, press either
the ALM1 or ALM2 briefly. “(((1)))” or “(((2)))” will be displayed to
the right of the time display when the alarm is activated.
c. When the snooze bar is pressed, the display will scroll through the
Alarm 1 and 2 times in the lower left.
3. TURNING ALARM OFF (WHILE SOUNDING)
a. While either alarm is sounding, press the SNOOZE bar to disable the
alarm for the set duration (Section II. D.). If the duration is set to “0”,
the alarm will be disabled for 24 hours.
b. After the SNOOZE bar is pressed, the lower left will display the time
remaining on the snooze. The SNOOZE bar may be pressed at any time
to restart the snooze duration.
c. To disable the alarm for 24 hours, press any button other than
SNOOZE or projection keys.
H. CHANGING DISPLAY MODE (DAY, SECONDS, AND
TEMPERATURE)
There are six possible display modes to view the day, seconds, and temperature
(remote temperature is constantly displayed). To change the display (starting at
the default of Day.Month.Date /Remote Temperature):
1. Press and release the “MODE/+” button. The display should now show
month.day.year/remote temperature
2. Press and release the “+” button a second time and the display will now
show seconds/remote temperature
3. Press and release the “+” button a second time and the display will now
show alarm1 time/remote temperature
4. Press and release the “+” button a second time and the display will now
show alarm2 time/remote temperature
5. Press and release the “+” button a second time and the display will now
show indoor temperature/remote temperature
6. Press and release the “+” button a second time and the display will now
show day.month.date/remote temperature
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V. MOUNTING THE REMOTE TEMPERATURE SENSOR
The Remote Temperature Sensor can be mounted in two ways: 1) with the use of
screws, or 2) using the adhesive tape.
A. MOUNTING WITH SCREWS
1. Remove the mounting bracket from the Remote Temperature Sensor. The
bracket should snap off easily.
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. Where marked, start the screw holes into the mounting surface.
4. Screw mounting bracket onto the mounting surface. Ensure that the screws
are flush with the bracket.
5. Snap the Remote Temperature Sensor onto the mounted bracket.
B. MOUNTING WITH ADHESIVE TAPE
1. With a nonabrasive solution, clean and dry the back of the mounting bracket
and the mounting surface to ensure a secure hold. The mounting surface
should be smooth and flat.
2. Remove the protective strip from one side of the tape. 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 Weather
Temperature Station can receive the signal.
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VI. MAINTENANCE & CARE
A. Extreme temperatures, vibrations, and shock should be avoided to prevent
damage to the units.
B. 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.
C. Do not submerge in water.
D. Immediately remove all low powered batteries to avoid leakage and damage.
E. Replace with new batteries only, and of recommended size.
F. Opening the casings invalidates the warranty. Do not try to repair the units.
Contact La Crosse Technology for Repairs.
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TROUBLESHOOTING
Problem:
Solution:
The Projection is faint
1) Change intensity setting
2) Use AC adapter
3) Darken surroundings
4) Use fresh batteries (if AC is not used)
Problem:
Solution:
Problem:
Solution:
The LCD is faint.
1) Replace the batteries.
“OFL” appears in the indoor temperature LCD.
1) Move unit to an area with warmer or cooler surrounding
temperature. Current surrounding temperatures are outside
measuring range.
Problem:
Solution:
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) Try leaving batteries in unit, but unplug the AC adapter
overnight. The first signal is most difficult to receive clearly,
and even a slight interference may cause failure of WWVB
reception.
6) If problems persist contact La Crosse Technology.
Hour is incorrect (minute and date are correct).
1) Be sure correct time zone and daylight saving time are
selected.
Problem:
Solution:
Problem:
Solution:
“--.-” 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, move closer.
2) Check batteries.
Problem:
Solution:
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.
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SPECIFICATIONS FOR WT-5431
Temperature:
Measuring range:
32°F to 122°F with 0.1°F resolution (indoor)
-21.8°F to 140°F with 0.1°F resolution (outdoor)
(0°C to 50°C with 0.1°C resolution)
Checking intervals:
Every 10 seconds indoor, 3 times in 10 minutes
for remote temperature.
Power source:
AC Adapter (included)
Battery type:
Input: 120VAC/60Hz Output: DC 6V/100MA
Station: 3 x AA, 1.5V (Alkaline) (optional)
Sensor: 2 x AA, 1.5V (Alkaline)
Battery life:
Approximately 12 months, depending on
projection and backlight use
Dimensions (L x W x H):
5.07”W x 2”H x 3.66”L
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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 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 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 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:
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La Crosse Technology
2809 Losey Blvd. S.
La Crosse, WI 54601
Phone: 608.782.1610
Fax: 608.796.1020
e-mail:
(warranty work)
(information on other products)
web:
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.
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