Room Comfort Sensor Tree

The Room Comfort Sensor Tree is used to measure temperature, humidity and CO2 in rooms or similar applications. The openings in the housing ensure rapid response to changes in measured values.

Datasheet Room Comfort Sensor Tree

Table of Contents


The recommended mounting height for the indoor climate sensor is between 1.2 m (4 ft) - 1.5 m (5 ft) when mounted on the wall. The positioning of the sensor should be adapted to the application. (e.g. according to what area of a space is generally occupied)

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

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
Temperature Provides the air temperature. ° -40...125
Humidity Provides the air humidity. % 0...100
CO2 Provides the CO2 value. ppm 400...10000

Diagnostic Inputs

Summary Description Unit Value Range
Online Status Room Comfort Sensor 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 -

Safety Instructions

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

The installation requires a suitable enclosure to ensure protection against contact, water and dust.

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


Datasheet Room Comfort Sensor Tree