TFA_No. 30.3051_Anl_03_23
05.03.2023
Instruction manual
Cat.-No. 30.3051
Wireless thermometer with clock
Thank you for choosing this instrument from TFA.
1. Before you use this product
• Please make sure you read the instruction manual care-
fully.
• Following and respecting the instructions in your manual
will prevent damage to your instrument and loss of your
statutory rights arising from defects due to incorrect use.
• We shall not be liable for any damage occurring as a
result of non-following of these instructions. Likewise, we
take no responsibility for any incorrect readings or for any
consequences resulting from them.
• Please pay particular attention to the safety notices!
• Please keep this instruction manual safe for future re-
ference.
2. For your safety
• This product should only be used as described within these
instructions.
• Unauthorised repairs, modifications or changes to the pro-
duct are prohibited.
Caution!
Risk of injury:
• Keep these devices and the batteries out of reach of chil-
dren.
• Small parts can be swallowed by children (under three years
old).
• Batteries contain harmful acids and may be hazardous if
swallowed. If a battery is swallowed, this can lead to serious
internal burns and death within two hours. If you suspect a
battery could have been swallowed or otherwise caught in
the body, seek medical help immediately.
• Batteries must not be thrown into a fire, short-circuited,
taken apart or recharged. Risk of explosion!
• Low batteries should be changed as soon as possible to
prevent damage caused by leaking.
• Never use a combination of old and new batteries together,
nor batteries of different types.
• Avoid contact with skin, eyes and mucous membranes when
handling leaking batteries. In case of contact, immediately
rinse the affected areas with water and consult a doctor.
Important information
on product safety!
• Do not expose the device to extreme temperatures, vibra-
tions or shocks.
• Protect it from moisture.
• The instrument is protected against splash water, but is not
watertight. Choose a shady and dry position for the trans-
mitter.
3. Getting started
Insert batteries
• Place both instruments on a desk with a distance of approx-
imately 1.5 meter. Check that no other electronic devices are
close.
• Pull off the protection foil from the display of the transmitter
and the base station.
• Open the battery compartment of the transmitter by pulling
the battery compartment cover downwards (see marking)
and lift up the cover.
• Insert two new batteries 1,5 V AAA. Ensure battery polarities
are correct.
• Close the battery compartment again.
• Open the battery compartment of the base station and insert
two new batteries 1,5 V AAA, ensure battery polarities are
correct.
• All LCD segments will light up for a short moment.
• Close the battery compartment again.
4. Reception of outdoor temperature
• After the batteries are inserted the outdoor temperature will
automatically be transmitted to the base station.
• The reception signal symbol flashes. The base station will
scan the outdoor temperature.
• If the reception of the outdoor temperature fails, "--.-"
appears on the display. Check the batteries and try it again.
Check if there is any source of interference.
• You can start the initialization manually. Press and hold IN/
OUT button on the front of the base station for 3 seconds.
• "--.-" appears and the reception signal symbol flashes on
the display. The base station will scan the outdoor tempera-
ture again.
5. Display
• The upper display shows the outdoor temperature (default).
• The lower display shows the indoor temperature (default)
and the time.
• Using the IN/OUT button, you can choose between the
large-scale display of indoor temperature or outdoor tem-
perature in normal mode.
6. Setting of the clock
• Press and hold SET/°C/°F button at the backside of the base
station.
10:21 Uhr
Seite 2
Instruction manual
Cat.-No. 30.3051
• 12 Hr flashes on the display.
• Press MEM/+ button in normal mode to choose 12 HR or
24 HR system. In 12 HR system AM or PM appears on the
display.
• Press the SET/°C/°F button.
• The hour digit is flashing. Press MEM/+ button to adjust
hours.
• Press the SET/°C/°F button again.
• The minute digit is flashing. Press MEM/+ button to adjust
minutes.
• Confirm the setting with the button SET/°C/°F.
• The set time appears on the display
7. Maximum and minimum temperatures
• Press the MEM/+ button at the backside of the base station.
• MAX appears on the display.
• The highest indoor temperature and outdoor temperature
are displayed since the last reset.
• Press the MEM/+ button again.
• MIN appears on the display.
• The lowest indoor temperature and outdoor temperature are
displayed since the last reset.
• To go back to the present temperature display, press the
MEM/+ button once more.
8. Store and reset of the maximum and minimum values
• As soon as the base station and the outdoor transmitter are
active the maximum and minimum values for indoor and
outdoor will be stored.
• Press and hold the MEM/+ button while the values are dis-
played to reset the maximum and minimum temperature to
the present temperature.
9. Temperature display
• Press SET/°C/°F button to change between °C (Celsius) or
°F (Fahrenheit) as temperature unit.
10. Positioning and fixing of the base station and the trans-
mitter
• With the foldable leg at the back of the unit, the base station
can be placed onto any flat surface. Avoid the vicinity of any
interfering field like computer monitors or TV sets and solid
metal objects.
• With the foldable leg at the back of the transmitter it can be
placed onto any flat surface or wall mounted at the respec-
tive location by the hanging hole at the back of the unit.
Choose a shady and dry position for the transmitter. (Direct
sunshine falsifies the measurement and continuous humidi-
ty strains the electronic components needlessly).
• Check the transmission of the signal from the outdoor trans-
mitter to the base station (transmission range 50 m free
field). Within ferro-concrete rooms (basements, superstruc-
tures), the received signal is naturally weakened.
• If necessary choose another position for the outdoor trans-
mitter and/or base station.
11. Care and maintenance
• Clean your instrument with a soft damp cloth. Do not use
solvents or scouring agents.
• Remove the batteries if you do not use the product for a
lengthy period.
• Keep the instrument in a dry place.
11.1 Battery replacement
• When the battery symbol appears on the display of the out-
door temperature, replace the batteries in the transmitter.
• When the battery symbol appears on the display of the
indoor temperature, replace the batteries in the base station.
• Please note: When the batteries are changed, the contact
between transmitter and base station must be restored – so
always insert new batteries into both units or start a manual
transmitter search.
12. Troubleshooting
Problems
Solution
➜ Observe correct polarity
No indication
on the base station
➜ Change the batteries
➜ Check batteries of external
No transmitter
reception
Display "---"
➜ Restart the transmitter and the
➜ Start manual search for the
➜ Choose another place for
➜ Reduce the distance between
➜ Check if there is any source
➜ Change the batteries
Incorrect indication
Instruction manual
Cat.-No. 30.3051
13. Waste disposal
This product and its packaging have been manufactured using
high-grade materials and components which can be recycled
and reused. This reduces waste and protects the environment.
Dispose of the packaging in an environmentally friendly man-
ner using the collection systems that have been set up.
14. Specifications
Base station
Measuring range
Indoor temperature:
Indication LL.L / HH.H:
Power consumption:
Dimensions:
Weight:
Outdoor transmitter
Measuring range
Outdoor temperature:
Range:
Transmission frequency:
Maximum
radio-frequency power:
Transmission time:
Power consumption:
Dimensions:
Weight:
No part of this manual may be reproduced without written consent of TFA
Dostmann. The technical data are correct at the time of going to print and
may change without prior notice.
The latest technical data and information about this product can be found
in our homepage by simply entering the product number in the search
box.
EU DECLARATION OF CONFORMITY
Hereby, TFA Dostmann declares that the radio equipment type 30.3051 is
in compliance with Directive 2014/53/EU. The full text of the EU declara-
when inserting the batteries
tion of conformity is available at the following Internet address:
www.tfa-dostmann.de/service/downloads/ce
www.tfa-dostmann.de
E-Mail: info@tfa-dostmann.de
transmitter (do not use
rechargeable batteries!)
TFA Dostmann GmbH & Co.KG
Zum Ottersberg 12, 97877 Wertheim, Germany
base station according to the
manual
transmitter: Press and hold
the IN/OUT button on the
base station
the transmitter and/or the
base station
the transmitter and the base
station
of interference
Instruction manuals
www.tfa-dostmann.de/en/service/downloads/instruction-manuals
Disposal of the electrical device
Remove non-permanently installed batteries and
rechargeable batteries from the device and dispose
of them separately.
This product is labelled in accordance with the EU
Waste Electrical and Electronic Equipment Directive
(WEEE).
This product must not be disposed of in ordinary
household waste. As a consumer, you are required to
take end-of-life devices to a designated collection
point for the disposal of electrical and electronic
equipment, in order to ensure environmentally-com-
patible disposal. The return service is free of charge.
Observe the current regulations in place!
Disposal of the batteries
Never dispose of empty batteries and rechargeable
batteries with ordinary household waste. They con-
tain pollutants which, if improperly disposed of, can
harm the environment and human health. As a con-
sumer, you are required by law to take them to your
retail store or to an appropriate collection site
depending on national or local regulations in order to
protect the environment. The return service is free of
charge.
The symbols for the contained heavy metals are:
Cd=cadmium, Hg=mercury, Pb=lead.
0 °C...+50 °C
(+32 °F ...+122 °F)
Temperature is outside
measuring range
2 x 1,5 V AAA
(batteries not included)
60 x 23 (50) x 90 mm
57 g (instrument only)
-20 °C... +60 °C
(-4 °F ...+140 °F)
max. 50 m (free field)
433 MHz
< 10mW
60 seconds
2 x 1,5 V AAA
(batteries not included)
We recommend Alkaline batteries
56 x 25 (55) x 90 mm
53 g (instrument only)
03/23