1-Wire Multisensor Air Quality Humidity and Temperature Pro I

1-wire Luftgüte sensor
Quantity Unit price
To 99 €136.37 *
From 100 €129.56 *

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  • 11151
  • DE30249510
Elegant Multisensor for air quality, humidity and temperature Pro 1 for 1-Wire bus system... more
Product information "1-Wire Multisensor Air Quality Humidity and Temperature Pro I"

Elegant Multisensor for air quality, humidity and temperature Pro 1 for 1-Wire bus system
with "air quality traffic light" for private and commercial use

- High measuring accuracy for temperature and humidity (300 - 400% more accurate than standard 1-Wire sensors)
- Sensitive air quality sensor
- Processing of the sensor values, therefore no complex formulas necessary
- wall sensor (surface mounting)

With the 1-Wire Multisensor for air quality (VOC or also called air quality), temperature and humidity, it is easy to monitor the indoor climate. It is one of the few sensors on the market that combines all three types of sensors in one attractive sensor housing. The air quality sensor used operates on the basis of a VOC mixed gas sensor.
The air quality is shown in the form of a "traffic light" with green, yellow and red displays. The "traffic light" is switched off in the dark by an integrated light sensor. Thus the sensor is also suitable for children's rooms and bedrooms.

With the help of the air quality sensor, a statement on the current air quality and advice on ventilation can be given. With the help of the humidity sensor, the humidity conditions in the room are monitored and a warning about possible mould growth could be issued via the evaluation software.

All sensors together make up an important sensor for heating and ventilation systems and are a main component of individual room control.
In combination with switch modules, e.g. actuators of radiators or ventilation systems can be controlled and regulated.

1-Wire components

DS2438 Multisensor for temperature, humidity and air quality


Temperature sensor with very high accuracy

Measuring range

- 40°C to +60°C (limited by the housing, sensor itself - 40°C to +125°C)


+/- 0.3° in the range of -10°C - 85°C


12 bit, 0.0625°C/bit

Air humidity

Sensor with high accuracy

Air humidity sensor

Capacitive sensor

Measuring range air humidity

0 -100% rel. air humidity


+/-3,5 %




12 bit, approx. 0.1% humidity

Air quality


Air Quality Sensor Type

Mixed gas sensor (VOC sensor)

Measuring range air quality

400 - 1800 ppm (CO2 equivalent)


+/- 10%, depending on the air composition

1-Wire connection

3 - conductor connection (data, ground and 5V, parasitic operation not supported)

Operating voltage

5 V= (+10%/-20%)

Power consumption

approx. 45mA


push-in terminal

Dimensions (outside)

80 x 80 x 32mm (LxWxH)

Note: Unfortunately, the Loxone 1-Wire Extension does not support the functional range of the module. Here we recommend the use of the 1-Wire Controller or the standard version of the 1-Wire Multisensor with the article number 11127, which we produce on request.

Stand - Alone operation

The ESERA air quality Multisensor can also be operated without connection to a 1-Wire bus system due to the integrated air quality traffic light. Only a power supply with 5V DC voltage is required for this. Due to the internal sensor controller, stand-alone operation is possible at any time. The ambient air is also analysed and a qualified statement about the air quality traffic light is output. This means that every room can be monitored, regardless of whether it is connected to a home automation system or not.

Assembly: Aufputz, Wandmontage, Wohnraum
Measured values: Luftfeuchte, Luftgüte, Temperatur
Function: Sensorik
Design: ESERA
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