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GREAT BRITAIN •
customer service
tel:
08545 300 9799
e-mail:
internet:
www.clasohlson.com/uk
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Wireless Temperature Sensor
Art.no 36-1797 Model WTH450H
Please read the entire instruction manual before using
the product and save it for future reference. We reserve the right
for any errors in text or images and any necessary changes
made to technical data. If you have any questions regarding
technical problems please contact our Customer Services.
Note:
If the transmitter and/or the external sensor are/is placed
outdoors, the location should be sheltered from rain, snow and
constant sunlight.
Buttons and functions
Care and maintenance
• Clean the sensor display unit using a lightly
moistened cloth. Only use mild cleaning
agents, never solvents or corrosive chemicals.
• Replace the batteries (2 × AA/LR6) when
the low battery symbol appears on the display.
• Bear in mind that the performance of
the batteries will suffer if they are subjected to
extremely high or low temperatures. This will
reduce the transmission range between
the sensor and display unit.
1. Channel indicator
2. Outdoor temperature
and humidity
(alternates
automatically)
3. External temperature
sensor
4. [ SET ] Channel and
house code setting
button.
5. Battery holder
6. Connection for
external temperature
sensor
7. [ C/F ] Select house
code and channel.
Select temperature
display in ºC or ºF.
8. Wall bracket
9. Fold-down
table stand
Installing the sensor display unit
1. Remove the battery cover form the back of the transmitter
and insert 2 × AA/LR6 batteries.
2. The house code digit flashes for 8 seconds.
3. Whilst the digit is flashing, choose a house code (01–15) by
pressing [ C/F ] repeatedly. Make sure that all the sensors in
your system have the same house code.
4. Press [ SET ] to confirm the house code. The channel will
flash for 8 seconds.
5. Select a channel (1–4) by pressing [ C/F ]. Confirm
the channel by pressing [ SET ] or by not pressing any
button for 10 seconds. If you only have one sensor,
we recommend that you choose channel 1.
6. Temperature and humidity are shown alternately on the display.
7. Alternate between Celsius and Fahrenheit by pressing [ C/F ].
• When the sensor is installed it will send data in one minute
intervals.
• Choose another house code if your weather station
experiences interference from other radio signals.
• Default setting: house code = 01, channel = 1.
External temperature sensor
The sensor display unit is equipped with a socket for
connecting the supplied external temperature sensor.
1. Connect the external temperature sensor to the sensor
display unit.
2. When the external temperature sensor is connected,
the following appears on the display:
-
A reading of the temperature at the temperature sensor.
-
A reading of the humidity at the sensor display unit.
-
The “OUT” symbol.
Troubleshooting guide
The temperature on
the sensor’s display
is not the same
as the outdoor
temperature displayed
on the receiver.
Wait 1–2 minutes to make sure
that the sensor and receiver
are in sync. If not, synchronise
the units again by holding in
the “Channel” button for three
seconds until a signal is heard.
The temperature on
the sensor seems to be
too high.
Make sure that the transmitter is
not placed in direct sunlight or
next to a heat source.
Disposal
This product should be disposed of in accordance with local
regulations. If you are unsure how to proceed, contact your
local authority.
Specifications
Batteries
2 × AA/LR6
Frequency
433.92 MHz
Operating environment
Temperature −50 to 70 ºC,
humidity 15–95 %
Range
up to 40 m in open spaces
