La Crosse WS1281 User manual

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WIRELESS WEATHER STATION
INSTRUCTION MANUAL
MODEL NO.: 1280/ 1281
Page
1. INTRODUCTION................................................................................2
1.1PACKAGECONTENTS...............................................................................2
1.2FEATURES....................................................................................................2
2.INSTALLATION..................................................................................................2
2.1INSTALLINGTHEBATTERIES...................................................................2
2.2MOUNTING...................................................................................................4
2.2.1 BASESTATION......................................................................................4
2.2.2 REMOTESENSOR ...............................................................................5
3.OVERVIEW.........................................................................................................5
3.1BASEUNIT-LCD...........................................................................................5
3.2LEDBACKLIGHT..........................................................................................6
3.3WEATHERFORECASTING........................................................................6
3.4WEATHERFORECASTTENDENCYINDICATOR..................................7
3.5PRESSURESENSITIVITYSETTINGFOR WEATHERFORECASTING.........7
3.6STORMWARNINGINDICATOR................................................................7
4.PROGRAMMODE .............................................................................................7
4.1 TIMEMODE ..................................................................................................8
4.2 INDOORTEMPERATURE&HUMIDITYMODE.....................................9
4.3 OUTDOORTEMPERATUREMODE......................................................10
5.TROUBLESHOOTING....................................................................................10
6.SPECIFICATION................................................................................ 11
This Operation Manual is part of this product and should be kept in a
safe place for future reference. It contains important notes on setup and
operation.
*NOTE:This is a combined operation manual for 1280 and 1281. 1280
can receive and display the DCF radio controlled time and date
(RCC function). 1281 maintain all the functions of 1280 but without
RCC function.

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1. Introduction
Thank you for purchasing this Wireless Weather Station. Designed for
everyday use, the weather station will prove to be an asset of great
value for your personal use in the home or office. Please read this
instruction manual thoroughly to fully understand the correct operation
of your weather station and benet from its unique feature.
1.1 Package Contents
● 1x Weather station base unit
● 1x remote Sensor with mounting bracket
● Mounting Screws
● Instruction manual
1.2 Feature
1) Indoor humidity (%RH)
2) Wireless outdoor and indoor temperature (°F or °C)
3) Records min. and max. humidity
4) Records min. and max. temperature
5) Weather forecast tendency
6) Forecast icons based on changing barometric pressure
7) Radio controlled time and date with manual setting option (1280 only)
8) Time Zone Setting
9) 12 or 24-hour time display
10) Perpetual calendar
11) Time alarm
12) Can receive up to 3 sensors
13) LED backlight
14) Wall hanging or free standing
15) Included one transmitter
16) Synchronized instant reception
17) Low battery indicator on the receiver
2. Installation
2.1 Installing the Batteries
Note: Please note the polarity when inserting/replacing batteries in
the unit, failure to do so may result in permanent damage. Use good
quality Alkaline Batteries and avoid rechargeable batteries.

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1) Insert two AAA batteries into the remote sensor. After the remote
sensor is powered up, the sensor will transmit weather data every 8s
for 16 times. After this learning period is over, then the transmitter will
transmit every 48s.
2) Insert two AA batteries into the weather station. When the base
station is powered up, a short beep will sound and all LCD segments
will light up for about 4 seconds before it enters into learning mode
to learn the sensors security code. Every time the remote sensor
is powered up (for example after a change of batteries), a random
security code is transmitted and this code must be synchronized with
the base station to receive weather data. Thus if battery change
happened on remote sensor side, then the base station must be
power up again to re-learn the transmitter.
3) Wait 3 minutes or until the outdoor temperature is displayed in the
weather station. Do not press any keys before outdoor sensor
data received. The wireless weather station can receive up to 3
temperature sensors. If you have purchased additional remote
sensors, repeat step 1) for all extra sensors. However, ensure that
you leave 10 seconds in between the reception of the last sensor and
the set-up of the following sensor. The wireless weather station will
number the sensors in the order of set-up, i.e. the rst temperature
sensor will have the temperature displayed with CH1. If only have
one sensor, CH1 won’t be display.
4) After the learning mode, the base station will start the radio controlled
time reception. The receiver will start RCC time reception period for
10 minutes maximum, and no weather data will be received during
this period of time. If RCC signal can’t be synchronized with the
base station within 1 minute, the signal search will be cancelled and
will automatically resume every hour on the hour until the signal is
successfully captured. Regular RF link will be established once RCC
reception routine is nished.
5) Mount the units, ensuring that the receiver can still pick up the signal
from the transmitter. To measure outdoor temperature, place the
transmitter outdoors. It will transmit the temperature from its location.

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Note: DO NOT PRESS ANY KEY on the base station until the rst
set of data is display on the LCD. This ensures that the base station
has synchronized with the sensors and that the system is now
functioning. If a key is pressed before the weather station receives
the temperature signal, you will need to follow the battery installation
procedure again. Please wait 10 seconds before re-insert the
battery again to make a proper reset for both transmitter and
receiver.
Note for Radio Controlled Time:
The time and date display is based on the signal provided by the
highly accurate government operated atomic clock. The base
station will continue to scan for the radio controlled time signal each
day at 2:00, 8:00, 14:00 and 20:00 despite it being manually set.
If reception has been unsuccessful, then the radio controlled time
icon will not appear but reception will still be attempted continually.
If reception has been successful, the received time and date will
overwrite the manually set time and date.
Note: Please participate in the preservation of the environment by
properly disposing of all used-up batteries and accumulators
at designated disposal points. Never dispose of batteries in
a fire as this may cause explosion, risk of fire or leakage of
dangerous chemicals and fumes
2.2 Mounting
2.2.1 Base Station
With one foldable legs at the back of the unit, the base station can be
placed onto any at surface or wall mounted at the desired location by
the hanging holes at the back of the unit. It is important to check that the
radio signal can be received before permanently mounting any of the
units

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2.2.2 Remote Sensor
Note: To achieve a true temperature
reading, avoid mounting remote sensor in
direct sunlight. We recommend that you
mount the remote sensor on an outside
North-facing wall; obstacles such as walls,
concrete, and large metal objects will reduce
the range.
To wall mount, use 3 screws to afx the wall
bracket to the desired wall, plug in the remote sensor to the bracket.
3. Overview
3.1 Base unit-LCD
The following illustration shows a normal LCD display for description
purposes only.

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1. Weather tendency arrow
2.Weather forecast icon
3.Time alarm icon
4.DCF tower icon for time
reception
5.Time / Date
6.MIN/MAX icon
7.Receiver low battery indicator
8.Indoor temperature display
9.Indoor Humidity display
10.MIN/MAX icon
11.Transmitter low battery
indicator
12.Outdoor temperature display
13.Number showing sensor unit
14.Outdoor receiption signal
3.2 LED backlight
The backlight is automatically switched ON when any key are pressed.
The backlight will be switched on for approximately 5 seconds before
automatically switching OFF.
3.3 Weather forecasting
The four weather icons Sunny, Partly Cloudy, Cloudy and Rainy
represent the weather forecasting. There are also two weather tendency
indicators to show the air pressure tendency.
Sunny Partly Cloudy Cloudy Rainy
For every sudden or signicant change in the air pressure, the weather
icons will update accordingly to represent the change in weather. If
the icons do not change, then it means either the air pressure has not
changed or the change has been too slow for the wireless weather
station to register. However, if the icon displayed is a sun or raining
cloud, there will be no change of icon if the weather gets any better
(with sunny icon) or worse (with rainy icon) since the icons are already
at their extremes. The icons displayed forecasts the weather in terms of
getting better or worse and not necessarily sunny or rainy as each icon
indicates. For example, if the current weather is cloudy and the rainy
icon is displayed, it does not mean that the product is faulty because it
is not raining. It simply means that the air pressure has dropped and the
weather is expected to get worse but not necessarily rainy.

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3.4 Weather tendency indicator
The weather tendency indicators arrow is located beside the weather
icons to show the air pressure tendency and provide a forecast of the
weather to be expected by the decreasing or increasing air pressure.
The upward arrow means that the air pressure is increasing and the
weather is expected to become better. The downward arrow means that
the air pressure is decreasing and the weather is expected to become
worse. The tendency indicator arrow will not show up while the pressure
without change within 3 hours.
3.5 Pressure sensitivity setting for weather forecasting
The pressure threshold can be set to suit the user’s requirement
for weather forecasting from 2-4hPa (default 3hPa). For areas that
experience frequent changes in air pressure requires a higher setting
compared to an area where the air pressure is stagnant. For example
if 4hPa is selected, then there must be a fall or rise in air pressure of at
least 4hPa before the weather station will register this as a change in
weather.
3.6 Storm warning indicator
Once you have selected pressure sensitivity, storm threshold is
internally calculated by adding 2hpa from your selected normal pressure
sensitivity. ressure threshold within 3 hours, the storm forecasting will
be activated, rain icon and downward arrows will flash for 3 hours
indicating the storm warning feature has been activated.
4. Program Mode
The base station has three keys for easy operation: CH/+ key, MODE/
SET key, MIN/MAX/- key. And there are three section on the LCD: Time
Mode, Indoor Temperature & Humidity Mode and Outdoor temperature
mode
The setting mode will return to normal display mode while key idle 30s.

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4.1 Time Modes
- Press the MODE key to make the arrow point to TIME display section
- Press the CH/+ key to shift the display of time, calendar(day-month-
year) and alarm time
- Press the -/MIN/MAX key to on/off the alarm. If alarm is enabledl,
will show in the TIME display section indicating the alarm
function has been enabled
- Press the MODE/SET key for 3s to select the following setting in sequence:
● Time Zone Setting
The default time zone setting value is 0 based on Germany DCF
time （GMT+1）
Time zone option +/-12 hours
For countries not at the same time zone area of Germany, it is
needed to set the correct time zone so that correct time can be
displayed after radio controlled clock time is received successfully.
● 12/24 hour format
● Manual time setting (hours/minutes)
● Calendar setting(year /month /date)
● Temperature display unit degree Celsius or Fahrenheit
● Pressure threshold setting (default 3hPa)
In the above setting modes, press CH/+ key or -/min/max key change
or scrolls the value. Hold the CH/+ key or -/min/max key for 3 second
will increase/decrease digits in great steps.

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Set alarm time
1. While in normal time display mode, press the CH/+ key twice to
display alarm time
2. Press SET/ MODE key for 3s to enter alarm time setting mode.
3. The hour digit will start ashing, press CH/+ key or -/min/max key to
set the hour.
4.Press and release SET/MODE key to set the minute.
5. The minute digits start ashing. press CH/+ key or -/min/max key to
set the minutes.
6. Conrm with SET/MODE key and will show in the TIME display
section indicating the alarm function has been enabled.
Canceling the alarm while sounding
When time alarm is triggered, the alarm will sound for 120seconds.
Press any key to mute the alarm
4.2 Indoor Temperture & Humidity Modes
Press the MODE key to make the arrow point to INDOOR TEMPERATURE
& HUMIDITYdisplay section
- Press the -/MIN/MAX key to display the following values:
1. Indoor temperature maximum
2. Indoor temperature minimum
3. Indoor humidity maximum
4. Indoor humidity minimum
5. Current indoor temperature and humidity

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Reset the indoor temperature and humidity MIN/MAX value
Press the MIN/MAX key for 3 seconds, the above individual minimum or
maximum record will be reset to zero
4.3 Outdoor Temperature Mode
Pressthe MODE keyto makethe arrowpoint toOUTDOORTEMPERATURE
displaysection
- Press and release CH/+ key to toggle between the outdoor sensor
1,2,3 ( If more than 1 sensor is used )
- Press the -/MIN/MAX key to display the following values:
1. Current channel outdoor temperature maximum
2. Current channel outdoor temperature minimum
3. Current outdoor temperature
- Reset the outdoor temperature MIN/MAX value
- Press the MIN/MAX key for 3 seconds, the outdoor temperature
minimum or maximum record will be reset to current temperature
value. It is required to reset the outdoor MIN/MAX temperature
records of different channels separately (if there are more than 1
wireless sensor used). In outdoor temperature mode, press the CH/ +
button to select a channel. The channel ID will be displayed besides
the outdoor temperature reading.
5. Troubleshooting
Q 1. No signal from remote sensor
A There can be many reasons for this, the following steps should
help you troubleshoot this problem.
1.1 Make sure that the batteries in the remote sensor are not
depleted.
1.2 Reduce the distance between transmitter and receiver
1.3 Remove the batteries from the base station and the remote
sensor and reset the weather station in the right order as described
in section 2 of this manual.