Full Text Searchable PDF User Manual
Get started with CTSmall
to get the quick guide in other languages
Petite, suitable everywhere (L80 x B40 x H20)
Warning for temperatures below +5°
Warning for temperatures over +45°
Warning for low self-selected temperature between 1-30°
Warning for high self-selected temperature between 1-45°
Power alarm – you will be notified so that you can prevent
fridge, freezer etc. from damage
During a power failure a status report is sent for each 2°
temperature drop if the room temperature is below 10°
Temperature sensor with built-in calibration (-5° – +5°)
GSM roaming supported
4 alert numbers
Self-selected unique ID, for example your address
Long IR range which enables it to be placed far from the
GSM module work worldwide at 850 / 900 / 1800 / 1900 MHz
All user setup data is stored safely
Li-Po with backup power for about 3 days or 60 hours
PSU with EU-plug, Inp:100-240VAC Out 6VCD
Custom-made software on request
Let’s get started …
(normal size) and use your phone to
Make sure there is money on the SIM card.
Insert the SIM card in the tray as illustrated below.
directly to the heat
pump / air condition.
to a wall outlet.
Send this SMS to the SIM card’s phone number:
– wait for SMS reply.
Enter your heat pump / air condition
brand name as it appears in the return
SMS, such as:
LED a flashing green fast
when sending and recieving a SMS.
sides of the lower part.
Pull the upper
covers both metal legs.
Get more help in our videos on
if you want the quick guide in other languages.
Get the app
Scan the code or go to
the app. Available for:
If you have a smartphone you can
download our very elegant and
With the app you can control
CTSmall the same way as you can
with SMS commands.
Apps for CTSmall as well as the development is from third party and is not a part of the Climatech company.
We do not provide any support. Furthermore, usage of this app is completely on your own risk.
(the pump is now on Heat at 8°). Values: 0, 8, 10, 16-24
(the pump is now on Heat at 22°)
(the pump is now on Cool at 18°)
(alarm sent with less than 10°). Values: 1-30
(alarm sent with more than 17°). Values: 1-45
1234,Name,(give the controller a name)
(alarm number 1 – max. 4.
Remember country code, such as “+45”)
(see our website for complete list of brands
or use the function 1234,Brand)
(get a list with all supported brands and
(adjust the internal temp. sensor, -5° to +5°)
(get a list with all entered emergency numbers)
(help function when mounting your CTSmall)
(get a list with all possible commands)
1234,NewPass, your new password
(maximum 10 characters,
CASE sensitive. 1234,NewPass,4D39a)
(this command must be written in CAPITALS.
Commands can also be something like:
1234 , heAT , 20
1234, cool , 22