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UNICA 1-wire type U1WTVS

CZK 589
VAT incl.

486.78 VAT excl.


UNICA 1-wire sensor module for sensing room/ambient physical quantities with connection to 1-wire bus

Features: Temperature, humidity, lighting measurement

temp.png humidity.png lux.png din.png
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UNICA 1-wire module is a device which is able to measure physical quantities such as temperature, humidity, lighting. Using 1-wire bus it is possible to read these values with superior device and use it for other purposes (e.g. heating, lights, pumps, etc.).

One of the advantages of this module when used is that it is integrated inside of Schneider UNICA push buttons and so it doesn't bother the user with its presence.

Different versions of modules have other features, e.g. sensing of digital input, analog input, or there is a option with backlighting the push button with integrated controlled LED diode with three different colours - blue, red, white.

Features and functions:

- Temperature - air temperature sensing
Humidity - air relative humidity sensing
Lighting - sensing of lighting intensity in place of usage
Dig. input - dig. input 0/5V sensing
Analog input - analog values 0 - 5V sensing
LED backlighting - push button backlight using controlled LED diodes - red, blue, white 
- 1-wire bus - communication bus

Push-button with 1wire module possibilities 1wire module integrated into the push-button Whole push-button without the cover


Order numbers of push buttons Schneider Unica (complete catalog HERE):



Examples of push-button backlighting using 1-wire modules with LED option:

Module connection to Loxone

Module connection to Railduino 2.0

1. Loxone Config settings - connection with Railduino 2.0 module - temperature measuring 

2. Loxone Config settings - connection with Railduino 2.0 modules - humidity measuring

Formula block for relative humidity calculation:

 TrueRH = (Vad / Vdd - 0,1515) / (0,006707 - 0,00001373 x Temp)

For Vdd you can use 5, as 5V voltage level

3. Loxone Config settings - connection with Railduino 2.0 module - lighting measuring

Connection of the module U1WTL with Loxone - controlling LED backligting using analog input 

Connection of the module U1WTVD with Loxone - sensing of window magnetic contact using dig. input

1. "How to find out the serial number of the module when connecting to Railduino module?"

When connecting 1wire sensor to the Railduino module and switching the power on - first there is an automatic detection of connected 1wire sensorr type and then every 30s the Railduino module sends packet to the superior control system with information about serial number and measured temperature values and so on. In order to watch this packet it is necessary open UDP monitor or RS232/RS485 monitor in Loxone Config.

 Unica 1-wire sensor module manual - operating instructions EN ver. 02/2017 DOWNLOAD
 Loxone Config template EN 03/2019 DOWNLOAD