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CZK 749
VAT incl.

619.01 VAT excl.

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

To be used with the Schneider Electric Unica switches series (MGU series) or wall installation box

ATTENTION!: Does not fit into new NU series

Features: Temperature, humidity, illuminance, RGB LED backlighting

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PCB protection
    Sellout    23 pieces

UNICA 1-wire module TVSL is a device which is able to measure physical quantities such as temperature, humidity, illuminance. 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.

Another feature of this module is that it contains RGB LED for illumination of the wall switch button - e.g. to indicate the location of the button at night, to indicate heating, alarm, etc.. It is also possible to scan the digital input with this module (in this case it is necessary to change the jumper of the printed circuit board and then the R terminal  changes into the terminal for digital input).

RGB LEDs need to be switched on with common ground circuits, it means LEDs have same power supply +5V. 

Features and functions:

- Temperature - air temperature sensing
Humidity - air relative humidity sensing
- Illuminance - sensing of lighting intensity in place of usage
- RGB LED illumination - illumination of the wall switch with the RGB LED - red, green and blue color
- Dig. input - digital input sensing 0/5V
- 1-wire bus - communication bus

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Push-button with 1wire module possibilities 1wire module integrated in the device Unica 1 wire module U1WTVSL


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



Examples of push-button backlighting using 1-wire module U1WTVSL's RGB LED:

1. 2. 3.
4. 5. 6.
7. 8. 9.
10. 11. 12.

Connection to Railduino LED module- 1 wire bus + controlling RGB LED 

Connection to Railduino 2.x module - 1 wire bus + switching the red and green LED + controlling the blue LED

Connection to Loxone 1wire extension - no control of RGB LED

1. Loxone Config settings - temperature measuring 

1.1 connection with Loxone 1wire extension

1.2 connection with Railduino 2.x module

2. Loxone Config settings - humidity measuring

2.1 connection with Loxone 1wire extension

Formula block for relative humidity calculation:

 RH = -12.5 + 125 * I1 / 5

2.2 connection with Railduino 2.x module

Formula block for relative humidity calculation:

 RH = -12.5 + 125 * I1 / 5

3. Loxone Config settings - connection with Railduino 2 module - lighting measuring

3.1 connection with Loxone 1wire extension

3.2 connection with Railduino module 2.x

4. Loxone Config settings - controlling the RGB LED - connection with Railduino 2.x module

The analogue output from the Railduino module "grounds" the LED. Since the RGB LED is connected to a 5V power supply, the maximum value of analog. output must not be 10V, but 5V, which corresponds to 127 (half of 255).

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. 01/2020 DOWNLOAD


Rated 4.67 on the scale 1 - 5 based on 1 customer reviews
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Very good product

I integrated a few of these modules behind Niko switches without any problem.<br /> <br /> I combined them on a 1-wire line with traditional DS18B20 in a Loxone installation. I read temperature and humidity of each room and I use the digital input to check the windows status.<br /> These components are very stable and reliable.<br /> <br /> That was not clear for me how to configure them in digital input mode. I received a good support from Sedtronic to make it.<br /> <br /> I highly recommand this product.

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