Touch Pure CO2 Tree

The Loxone Touch Pure CO2 Tree features five touch points on a glass surface to control the most important functions of a room. When a button is touched, an audible click confirms the action.

The large center touch zone is ideal for controlling the lighting, while the corner zones are suitable for controlling music and shading. It is based on the Loxone switch standard. The buttons can also be freely used for other applications.

It also features a controllable orientation light and the integrated sensor measures temperature, relative humidity and CO2.

Please note that there is a certain delay when measuring humidity due to the housing. The Room Comfort Sensor is better suited for a fast detection of changes in humidity.

Datasheet Touch Pure CO2 Tree

Table of Contents


Install the mounting frame at the desired location.

Connect the power supply (orange/white terminal) and Tree communication wires (green/white terminals). Shortly after power-up, the status LED will blink orange if the wiring is correct (connection to Tree Extension and Miniserver is established).

Mount the device by snapping it onto the mounting frame.


Then follow the pairing procedure on the Tree Interface.

Calibrate CO2 sensor

The CO2 sensor automatically calibrates itself weekly if it is in continuous operation for this period.

Manual calibration of the CO2 sensor is not necessary, but can be performed for special applications.
To do this, first ensure that the CO2 value at the measuring point is as low and constant as possible.
Now measure the CO2 value at the measuring point with a suitable measuring device.
Immediately afterwards, assign the measured value to the sensor via a device command or webservice command, in the following example 450ppm:



Summary Description Unit Value Range
T5 Combined input for the 5 touch points according to the Loxone Switch Standard. -
Temperature Provides the air temperature. ° -40...125
Humidity Provides the air humidity. % 0...100
CO2 Provides the CO2 value. ppm 0...40000


Summary Description Value Range
Orientation light Digital output to control the orientation light. 0/1

Diagnostic Inputs

Summary Description Unit Value Range
Online Status Touch Pure CO2 Tree Indicates whether the device can be reached by the Miniserver.
Diagnostics for Air devices
Diagnostics for Tree devices
Diagnostics for Extensions
Digital 0/1


Summary Description Default Value
Monitor Online Status When selected, you will be notified via System Status or the Mailer if the device is no longer available or goes offline. -
Serial Number Specifies the serial number of the device.
For Extensions: Enter 'Auto' to automatically pair an extension with unknown serial number.
This can only be used if there is only one Extension of the same type.
Save into the Miniserver, in order to pair the Extension.
Afterwards the program must be loaded from the Miniserver to transfer the actual serial number of the Extension into the program.
Device type Tree device type -
Show Button 1 Show individual button -
Show Button 2 Show individual button -
Show Button 3 Show individual button -
Show Button 4 Show individual button -
Show Button 5 Show individual button -
Audible acknowledgement Audible acknowledgement on button press -

Safety Instructions

The installation must be carried out by a qualified technician in accordance with all applicable regulations.

Ensure that the device is protected from water.

The device must not be used as part of safety-critical systems.


Datasheet Touch Pure CO2 Tree