La Crosse WT521IT User manual

WT521IT
915 MHz
Projection Alarm Clock
Instruction Manual

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PROJECTION ALARM CLOCK
Model WT521IT
Instruction Manual
INTRODUCTION:
Congratulations on purchasing this compact 915 MHz Projection Alarm Clock which displays time,
indoor temperature and outdoor temperature readings. With only four keys, easy to use, this product
is ideal for use in the home or office.
« Instant Transmission+» is the up and coming state-of-the-art new wireless
transmission technology, exclusively designed and developed by LA CROSSE
TECHNOLOGY.
“IT +” offers you an immediate update of all your outdoor data measured from
the transmitters: follow your climatic variations in real-time!

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PROJECTION ALARM CLOCK
FEATURES
Manual setting option
12/24 hours time display (hour, minutes, seconds)
Time projection (hour and minute)
Projection with adjustable brightness and projection orientation possible
Calendar display
Alarm setting with snooze function
Time zone setting ±12hours
Temperature display in ºC or ºF
Indoor and outdoor temperature display
Battery
compartment
Stand
A
daptor socket
Function
keys
LCD
Display

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E.L. back-light
Wireless transmission at 915 MHz
Signal reception intervals at 4 seconds
Low battery indicator
TEMPERATURE TRANSMITTER:
Remote transmission of outdoor temperature to weather station
by 915 MHz signal
Wall mounting case
Mount in a sheltered place. Avoid direct rain and sunshine

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TO INSTALL AND REPLACE BATTERIES IN THE TEMPERATURE
TRANSMITTER
The Temperature Transmitter uses 2 x AA, IEC, LR6, 1.5V batteries. To install and replace
the batteries, please follow the steps below:
1. Remove the cover.
2. Insert the batteries, observing the correct polarity (see marking).
3. Replace the battery cover on the unit.
Note:
In the event of changing batteries in any of the units, all units need to be
reset by following the setting up procedures. This is because a random
security code is assigned by the transmitter at start-up and this code must
be received and stored by the Projection alarm clock in the first three
minutes of power being supplied to it.
TO INSTALL AND REPLACE BATTERIES INTO THE PROJECTION CLOCK
The Projection Clock uses 2 x AA, IEC LR6, 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 centre of the battery compartment and
lift up to remove the cover.
2. Insert batteries observing the correct polarity (see
marking).

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3. Replace compartment cover.
In addition or instead of inserting batteries, the AC adaptor can be used:
1. Connect the power adaptor to a wall socket
2. Insert the adaptor into the
jack at the bottom of the
clock
Important!
Use only the adaptor provided with
the projection clock and make sure
that your household voltage is
appropriate to the working voltage
of the transformer. Otherwise your
Projection clock may be damaged.
POWER SUPPLIED BY BATTERIES AND AC/DC ADAPTOR
If the Projection clock is first powered by batteries and the power adaptor is subsequently
used for extended period of time, the main power source of the Projection clock will switch to
AC/DC power. The batteries will then act as a backup power source in case of power failure.

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SETTING UP
The Projection clock can be battery operated or powered by the provided AC/DC
adaptor.
1. First, insert 2 x AA, IEC LR6, 1.5V batteries into the transmitter.
2. Within 1 minute of activating the remote transmitter, insert 2 x AA, IEC LR6, 1.5V
batteries into the projection clock (or use the A/C adaptor to power up). Once the
batteries are in place, all segments of the LCD will light up briefly. Then the indoor
temperature, the time as 12:00, will be displayed. If the indoor temperature is not
displayed after a few seconds, remove the batteries and wait for at least 30 seconds
before reinserting them. Once the indoor data is displayed proceed to step 3.
3. After a few seconds of inserting the batteries into the transmitter, the projection clock
will start receiving data from the transmitter. The remote temperature will then be
displayed on the clock. If this does not happen after 2 minutes, the batteries will need
to be removed from both units and reset from step 1.
4. In order to ensure sufficient 915 MHz transmission however, the distance between the
Projection clock and the transmitter should not be more than 100 metres (330 feet)
(see notes on “Positioning” and “915 MHz Reception”).
Note:
Should the total time of inserting the batteries into the transmitter take longer than 1-1/2
minutes from the time of inserting the batteries into the projection clock then temperature

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reception problems may occur. If the temperature is not being received, then see "915MHZ
RECEPTION", before resetting the units.
In the event of changing batteries to the transmitter, the projection clock needs to be reset.
(See RESETTING THE PROJECTION CLOCK)
5. Press the SET key to manually enter a time initially.
RESETTING THE PROJECTION CLOCK
To reset the Projection clock to the factory default setting or in case of a malfunction or
changing batteries to transmitter, please remove all batteries from the unit and unplug the
AC/DC adaptor from any power source. With power disconnected, press any button 20
times. Wait at least for 3 minutes before powering up the Projection clock again.
BATTERY CHANGE:
It is recommended to replace the batteries in all units regularly to ensure optimum accuracy
of these units (Battery life See Specifications below).
Please participate in the preservation of the environment. Return used
batteries to an authorized depot.

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PROJECTION OF TIME / OUTDOOR TEMPERATURE
Note:
The projection is a red light, not harmful under normal usage, yet care should be taken to
avoid looking directly into the light.
1. When plugged into an AC outlet, the projection alarm can continuously project the time
and the outdoor temperature
2. When operating on batteries alone, the projection alarm will only project when the
SNOOZE button is pressed or the alarm is sounding.
3. The projection will auto-focus for display from about 1.7 to 2.0 metres (5.5 to 6.5 feet)
away. A dark surrounding will be necessary to clearly see the projection.
The direction of the display can also be rotated 360 in 90 increments by pressing the
Projection Direction button. The projector case can be rotated 180 to further help orient
the projected display.
Note:
If the Projection clock is powered through the adaptor, the projection will be constantly ON at
the highest brightness level unless the brightness level is manually changed to a lower
brightness level afterwards. And the brightness of the projection can be change accordingly
to enhance the clarity of the projected time by pressing the key. Press and release the
key slowly to also turn off.

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If the Projection clock is battery operated, the projection will be ON at the highest brightness
level only when the SNOOZE key is pressed. The intensity of the brightness level of the
projection cannot be changed. If the SNOOZE is released, the projection will be turned OFF.
TOGGLE BETWEEN THE DISPLAY OF TEMPERATURES, SECONDS,
PRESET ALARM TIME AND CALENDAR
With a short press of the MODE/MIN key, you will toggle between the following displays:
1. Indoor and outdoor temperature
2. Seconds
3. Preset alarm time
4. Day and Month