TESA WS1151 User manual

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WIRELESS WEATHER STATION
INSTRUCTION MANUAL
MODEL: WS1151
Page
1. Inventory of contents..................................................................................................2
2. Feature .........................................................................................................................2
3. Set up guide.................................................................................................................2
3.1 Battery installation ............................................................................................2
3.2 Mounting ............................................................................................................3
4. LCD overview ..............................................................................................................3
4.1 LCD overview.....................................................................................................3
4.2 Weather forecasting..........................................................................................4
4.3 Weather tendency indicator .............................................................................4
4.4 Examples of changing weather icons .............................................................4
4.5 Storm warning indicator ...................................................................................5
5. Program modes...........................................................................................................5
5.1 Quick display mode...........................................................................................5
5.2 Setting mode......................................................................................................5
5.3 Alarm mode........................................................................................................6
5.4 Min/Max mode....................................................................................................7
6. City Location listing....................................................................................................7
7. Problems and interference with operation ...............................................................8
8. Specification................................................................................................................8
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, operation and resetting when necessary.
※ NOTE
Thank you for purchasing this Wireless Weather Station. This is a combined operation manual for
WS1151. 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 benefit from its unique features.

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1. Inventory of contents
1) 1 x Base station
2) 1 x One WH2A remote sensor with mounting bracket
3) 1 x Instruction manual
4) 1 x Warranty Card
2. Feature
1) Wireless outdoor and 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) Barometric pressure 24-hour history graph (inHg or hPa)
6) Weather forecast tendency arrows
7) Forecast icons based on changing barometric pressure
8) Time and date by manual setting
9) 12 or 24-hour time display
10) Perpetual calendar
11) Time alarm with snooze
12) Can receive one sensor
13) LED backlight
14) Wall hanging or free standing
15) Included transmitter WH2A
16) Low battery indicator
17) Synchronized instant reception
18) Sunrise time
19) Sunset time
20) Moon Phase
3. Set up Guide
3.1 Battery installation
Note: To avoid operating problems, please take note of battery polarity before/when inserting any Alkaline
Batteries (permanent damaged could be introduced by inserting the battery in wrong direction).
Use good qualityAlkaline Batteries including Varta and Maxell and avoid rechargeable batteries.
1) Insert two AAA batteries into the remote sensor
2) Insert three AAbatteries into the weather station.
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.
4) Mount the units, ensuring that the receiver can still pick up the signal from the transmitter. To
measure outdoor temperature, place the transmitter less than 100 meters outdoors. It will transmit
the temperature from its location.

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 transmitter side, then the receiver must be power up again to
re-learn the transmitter.
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.
When the base station is powered up, a short beep will sound and all LCD segments will light up for about
3 seconds before it enters into learning mode to learn the sensors security code.
Note: DO NOT PRESS ANY KEY during the first 3 minutes learning period. After both indoor and
outdoor data are displayed you can place your remote sensor outdoors and set your time. If there is no
temperature reading in the indoor station, make sure the units are within range of each other or repeat
the battery installation procedure. 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.

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nd fumes
Note:
When batteries require replacement for the base station, the low battery indicator will light up on the LCD.
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 a
3.2 Mounting
1) Base station
2) With one foldable legs at the back of the unit, the base station can be placed onto any flat surface or
wall mounted at the desired location by the hanging holes also 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
3) Remote sensor
4) 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 South-facing wall; obstacles such as walls,
concrete, and large metal objects will reduce the 100 meter range.
in the remote sensor to the bracket.
4. LCD overview
4.1 LCD overview
The following illustration shows the full segments of the LCD for description purposes only and will not
appear like this during normal operation.
F or wall mount, use 3 screws to affix the wall bracket to the desired wall, plug

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1. Weather forecast icon
2. low battery indicator
3. MIN/MAX information
4. Sunrise time
5. Moon phase indicator
6. Sunset time
7. Indoor temperature low / high alarm
8. Indoor temperature display
9. Temperature display unit
10. Indoor humidity display
11. Indoor temperature and humidity alarm on
indicator
12. Indoor humidity low / high alarm
13. Dew point temperature display
14. Outdoor temperature low/high alarm
15. Outdoor temperature and humidity alarm on
indicator
16. Temperature display unit
17. Outdoor temperature display
18. Outdoor humidity display
19. Outdoor humidity low/high alarm
20. Absolute or relative air pressure selection
21. Barometer air pressure
22. Pressure with 24 hour history graph
23. Pressure high alarm
24. Pressure alarm on indicator
25. Pressure low alarm
26. Pressure display unit (inHg or hPa)
27. DS
28. Radio Controlled Time icon not applicable
29. Time
30. Second
31. Day of week/ time zone
32. Alarm on indicator
33. Date (D / M / Y)
4.2 Weather forecasting
Moon Phase lcons
Sunny Partly Cloudy Cloudy Rainy
The
New
Moon New Moon
Full
Moon
Waxing
Crescent Waning Crescent
First
Quarter Last Quarter
Waxing
Gibbous Waning Gibbous
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 between the weather icons.
The weather forecasting is based upon the change of air pressure.
4.3 Weather tendency indicator
The weather tendency indicators arrow is located between 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 rightward arrow means that the air pressure is increasing and the weather is expected to become better.
The leftward arrow means that the air pressure is decreasing and the weather is expected to become worse.
The change of weather forecast icon is in accord to the relationship between current relative pressure and the
pressure change since last six hours. If the weather is changing, weather tendency indicator (animated
arrows) will be flashing for three hours indicating a weather change is happening. After that, if weather
conditions have become stable and no new weather change condition met,then the arrows will be fixed.
4.4 Examples of changing weather icons:
T Daylight saving time on/off
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for New Z ealand or Australia.

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4.5 Storm warning indicator
The storm threshold can be set to suit the user’s requirement for storm forecasting from 5-9hPa (default
6hPa). When there is a fall over pressure threshold within 3 hours, the storm forecasting will be activated, the
clouds with rain icon and tendency arrows will flash for 3 hours indicating the storm warning feature has been
activated.
Notes to 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.
5. Program Mode
The base station has five keys for easy operation: SET key, ALARM key, MIN/MAX key +key and
SNOOZE/LIGHT key. And there are four program modes available: Quick Display Mode, Setting Mode,
Alarm Mode and Min/Max Mode.
The program mode can be exited at any time by either pressing the SNOOZE/LIGHT key, or waiting for the
10-second time-out to take effect.
5.1 Quick Display Mode
While in Normal Mode, press the SET key to enter the Quick Display Mode as follow:
1) Outdoor Temperature / Dew point (press the MIN/MAX key or +key shifts the display between
outdoor temperature and dew point)
2) Absolute pressure / Relative pressure (press the MIN/MAX key or +key shifts the display between
the absolute pressure and relative pressure)
Press the SET key to accept the change and advance to the next display mode. Continue to press the SET
key to toggle through the display mode until return to the normal Mode
5.2 Setting Modes
Press the SET key for 3 second while in normal mode to enter the normal Setting mode
Press the SET key to select the following setting in sequence :
1) T ON/OFF (DST=Daylight Saving)
During the daylight saving DST should be on.
SD
2) Time Zone Setting
3) 12/24 hour format
4) Manual time setting (hours/minutes)
5) Calendar setting (year /month /date)
6) Temperature display unit degree Celsius or Fahrenheit
7) Indoor humidity calibration
8) Outdoor humidity calibration
9) Air pressure display units in hPa or inHg
10) Relative pressure setting from 700hPa – 1100hPa (default 1013.5hPa)
11) Pressure threshold setting (default 2hPa)
12) Storm threshold setting (default 4hPa)
13) City select
In the setting modes, press +key or MIN/MAX key change or scroll the value. Hold the +key or
MIN/MAX key for 3 second will increase/decrease digits quickly.
Press SNOOZE/LIGHT key or key idle 10 second, the setting mode will return to Normal Mode
Note: Please set the units firstly before changing the unit’s value. During change of units setting, units’
value will change according to new units but it might cause resolution loss due to its internal calculation
algorithm.

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5.3 Alarm Modes
While in Normal Mode press the ALARM key to enter the High Alarm Mode
Press the ALARM key again to enter Low Alarm mode
Remark: After the initial pressing of ALARM key, the display will be refreshed to show current high, low
alarm value. Normal alarm value will be displayed only for those already activated, all other
not activated values will be displayed with “---“or”--“instead.
Press the ALARM key again to return the Normal Mode
In the High Alarm Mode press the SET key to select the following alarm modes:
1. Time alarm (hour/minute)
2. Indoor humidity high alarm
3. Indoor temperature high alarm
4. Outdoor humidity high alarm
5. Outdoor temperature and dew point high alarm
6. Pressure high alarm
In the Low Alarm Mode press the SET key to select the following alarm modes:
1. Time alarm (hour/minute)
2. Indoor humidity low alarm
3. Indoor temperature low alarm
4. Outdoor humidity low alarm
5. Outdoor temperature and dew point low alarm
6. Pressure low alarm
In the alarm modes, Press +key or MIN/MAX key change or scroll the alarm value. Hold the +key or
MIN/MAX key for 3 second to change the number quickly. Press the ALARM key to choose the alarm on
or off (if alarm is enabled, the speaker icon on the LCD will be turned on indicating the alarm function has
been enabled). Press the SET key to confirm the setting and continue pressing the SET key to toggle
through each alarm mode until it returns to the normal display mode.
Press SNOOZE/LIGHT key or key idle 10 second at any time, the alarm mode will return to Normal
Mode
Canceling the Temperature Alarm While Sounding
a. When a set weather alarm condition has been activated, that particular alarm will sound and flash for 120
second. Press any key to mute the alarm. When weather alarm condition was activated again within 10
minutes, alarm will not sound but will continue to flash until weather conditions have become more steady.
This feature is useful to avoid repeated triggering for the same alarm value.
b. The alarm will reactivate automatically once the value has fallen below the set value, or if a new value is
entered.
The outdoor weather alarm
When a set outdoor weather alarm has been triggered, it will flash on the LCD display and the general
outdoor alarm icon and high/low alarm icon will flash accordingly. For example in outdoor temperature display
mode, when dew point high alarm is triggered, DEW POINT icon will flash along with general outdoor alarm
icon and high alarm icon flashing, telling that the current alarm source is from dew point.

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5.4 Min/Max Mode
While in Normal Mode, press the MIN/MAX key to enter the maximum mode, MAX logo and the general
Max record will be displayed.
Press MIN/MAX key again to enter the minimum mode, MIN icon and minimum record will be displayed
Press MIN/MAX key again to return the Normal Mode
In the maximum reading Mode, press the +key to display the following maximum values together with
the time and date time stamp at which these values were recorded:
1. Indoor humidity maximum
2. Indoor temperature maximum
3. Outdoor humidity maximum
4. Outdoor temperature maximum
5. Outdoor dewpoint maximum.
6. Pressure maximum
In the minimum reading Mode, press the +key to display the following minimum values together with
the time and date at which these values were recorded:
1. Indoor humidity minimum
2. Indoor temperature minimum
3. Outdoor humidity minimum
4. Outdoor temperature minimum
5. Outdoor dewpoint minimum.
6. Pressure minimum
While in the minimum or maximum mode, press SET key for 2 seconds individual minimum or
maximum record will be reset to current reading together with the current time and date.
Press the SNOOZE/LIGHT key or key idle 10 seconds, the Min/Max mode will return to Normal Mode
6. City location listing
City
Country City name Abbreviation Country Abbreviation
Auckland AUK New South Wales NSW
Bay of Plenty BOP Queensland QLD
Canterbury CAN South Australia SA
Hawke's Bay HKB Tasmania TAS
Northland NTL Victoria VIC
Otago OTA Western Australia WA
Southland STL Australian Capital
Territory ACT
Taranaki TKI Northern Territory NT
Waikato WKO
Wellington WGN
West Coast WTC
Tasman District TAS
New Zealand
NZL
Chatham
Islands Territory CIT
Australia
AUS
The sunrise/sunset times will be calculating automatically base on the selected city.
State
State name

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7. Problems and interference with operation
Problem & cause Remedy
Distance between the transmitter and
receiver too long Reduce distance between the transmitter and receiver to receive signal
High shielding materials between the
units (thick walls, steel, concrete,
isolating aluminum foil, etc.)
Find a different location for sensor and/or receiver. See also
item ‘transmission range’ below
Interference from other sources (e.g.
wireless radio, headset, speaker, etc.
operating on the same frequency)
Find a different location for the sensor and/or base station.
Neighbors using electrical devices operation on the same signal
frequency can also cause interference with reception
No reception after adding extension
cables Find a new location for the sensor and/or base station.
Poor contrast LCD or no reception or
low batteries in sensor or receiver Change batteries ( check low battery indicator on the LCD)
Temperature, humidity, or air pressure
is incorrect.
Check/replace batteries. If multiple remote sensors are in use,
check location with corresponding “boxed numbers”. Or move
away from sources of heat/cold.Adjust relative air pressure to a
value from a reliable source (TV radio, etc.).
8. Specifications
Outdoor data
Transmission distance in open field : 100 meters max.
Frequency : 433MHz
Temperature range : -40 oC to +65 oC (show OFL if outside range)
Resolution : 0.1 oC
Measuring range rel. humidity : 20%95%
Humidity accuracy : +/-5% under 0-45 oC
Measuring interval thermo-hygro sensor : 48 sec
Water proof level : IPX3
Indoor data
Pressure / temperature : 48 sec
Indoor temperature range : 0 oC to +60 oC
Resolution : 0.1 oC
Measuring range rel. humidity : 1% ~ 99%
Resolution : 1%
Measuring range air pressure : 700hPa – 1100hPa
Resolution/Accuracy : 0.1hPa/1.5hPa
Alarm duration : 120 sec
Power consumption
Base station : 3 x AA 1.5V LR6 Alkaline batteries
Remote sensor : 2 x AAA 1.5V LR03 Alkaline batteries
Battery life : Minimum 12 months for base station
: Minimum 24months for remote sensor