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GREAT BRITAIN
For consumer contact, please visit www.clasohlson.co.uk and click on customer service.
Ver. 200909
Use
Reading the temperature
Reading the indoor temperature:
1. When you have inserted the batte-
ries the temperature will appear on
the display.
Reading the temperature outdoors:
1. Push the
Channel
button repeatedly to switch from
channel 1, 2, 3 and 4. The temperature and humidity
alternate on the display.
2. Press and hold in
Alarm/°C/°F
for 3 seconds to activate
or deactivate the automatic switch between the different
channels (applies if you have more then one sensor).
Switching between Celsius and Fahrenheit:
3. Switch between Celsius (°C) and Fahrenheit (°F) by
pressing
Alarm/°C/°F
when the receiver is in clock mode.
High and low indication:
“Hi” and “Lo” appear on the display when the values fall
over or under the normal values.
Indoor/
Outdoor
Temperature In the display
Indoor
> + 55 °C
Hi
Indoor
< - 20 °C
Lo
Outdoor
> + 70 °C
Hi
Outdoor
< - 50 °C
Lo
Temperature trend:
The temperature trend is read every half-hour and is shown
with arrows as follows:
Indicator
Arrow
angled up
Arrow
right
Arrow angled
down
Trend
Rising
Steady
Falling
Care and maintenance
Use a soft damp cloth to wipe the product.
Never use strong detergents or solvents.
Troubleshooting guide
Problem
Remedy
The temperature
on the sensor’s
display is not the
same as the out-
door 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 sensor is not
placed in direct sunlight or next to
a heat source.
The receiver can-
not receive signals
and display them.
• Synchronise the units again.
• The temperature could be under
- 50˚C.
• The transmitter’s batteries might
need replacing.
• Move the receiver and the sensor
closer to each other.
• Make sure that the sensor is
placed away from electrical
interference.
The functions are
strange or not
working at all.
The instrument needs to be reset.
Do this by removing or replacing
the batteries in both the receiver
and sensor.
Disposal
Follow local ordinances when disposing this product. If you
are unsure about the disposal of this product contact your
municipality.
Specifications
Receiver WS2015
Battery
2 x LR6/AA
Operating Temperature 0 °C to +50 °C
Receiver WT450
Battery
2 x LR6/AA
Operating Temperature -50 °C to +70 °C
Transmission Frequency 433.92 MHz
Range
Up to 40 metres (unobstructed)
Min and max temperatures:
4. Press
Minute/-/Min
in the clock
mode to see the minimum
temperature.
5. Press
Hour/+/Max
in the clock
mode to see the maximum
temperature.
Remark.
You can erase the values
by pressing and holding
Minute/-
/Min
or
Hour/+/Max
until a buzzer
is heard.
Countdown Timer
You can set the timer to have the clock count down and the
alarm sounds after a certain time period.
1. Press
Mode/Snooze
repeatedly until the timer symbol
is seen.
2. Press
Hour/+/Max
to set the hours and press
Minute/-/Min
to set the minutes and press
Channel
to set seconds.
3. Press
Alarm/°C/°F
to start the countdown.
• Press
Alarm/°C/°F
to stop the countdown.
• Press
Alarm/°C/°F
one more time to return to
the pre-set time.
• Press
Alarm/°C/°F
one more time to start
the countdown.
Low battery warning
If the batteries are exposed to very low or very high tem-
peratures for a long time, they can lose their power thus
reducing the range between the sensor and the receiver.
Receiver
1. If the low battery symbol appears on the display
beneath the indoor temperature trend square, it is time to
change the receiver battery.
When the battery is low the
following can happen:
• The display dies.
• The range between the sen-
sor and receiver is reduced.
• Data from the sensor is lost.
2. You need 2x LR6/AA batteries for the receiver.
Sensor
3. If the low battery symbol appears on the sensor’s
display, it is time to replace the battery.
4. The low battery symbol also appears beneath the
outdoor temperature trend square
on the receiver.
5. You need 2x LR6/AA batteries for
the sensor. When the batteries are
changed in the sensor, the synch-
ronization between receiver and
sensor has to be done again.
/Min
to set desired temperature for when the alarm
should sound.
4. Press
Mode/Snooze
to confirm the setting.
Temperature alarm outdoor (sensor):
1. Press the
Mode/Snooze
button
repeatedly to get to the outdoor
temperature alarm setting mode.
The symbol
is displayed.
2. Press
Channel
repeatedly to
select sensor.
3. Press
Alarm/°C/°F
repeatedly
to switch between temperature
alarms for high and low tempe-
rature and also to deactivate the
alarm.
4. Press
Hour/+/Max
or
Minute/-/Min
to set desired temperature for
when the alarm should sound.
5. Press
Mode/Snooze
to confirm the setting.
When the temperature alarm sounds:
• The current channel is displayed and also if it is the alarm
for too high or low temperature.
• Press any button to shut the alarm off.
Different clock displays
There are three different ways of displaying the clock.
Switch between these by repeatedly pressing
Mode/Snooze.
Setting the temperature alarm
You can decide if you want the alarm to warn you when
the temperature reaches a certain level. You can set two
alarms at the same time – one for the receiver and one for
a sensor.
Indoor temperature alarm
(receiver)
1. Press the
Mode/Snooze
button
repeatedly to get to the indoor
temperature alarm setting mode.
The symbol
is displayed.
2. Press
Alarm/°C/°F
repeatedly
to switch between temperature
alarms for high and low tempe-
rature and also to deactivate the
alarm.
3. Press
Hour/+/Max
or
Minute/-
1. Hours, minutes, seconds, date and month.
2. Hours, minutes, week day, date and month.
3. Alternative time zone: Hours, minutes, week day, date
and month.
