Air quality

Increased CO2 values, fine dust or VOC loads in the room have a negative impact on well-being and energy costs. With Aerasgard® Air Guavers, CO2 Transmitters, mixed gas detectors and RHEASGARD® flow sensors, you can monitor the entire indoor climate in schools, living, working and conference rooms, cinemas, sales rooms, institutes or laboratories.

With our RHEASREG® air flow guards and flow measuring shapes, you have air, gas or liquid under control. For reliable flow monitoring in fans, stork flaps, heating registers and humidifiers. Our sensors have a patented multi-chamber duct tube and can represent up to four measuring sizes.

To the Air Quality Guide
103 products
  • Raumtemperaturfühler mit Display
    °C + % RH + CO2

    Room sensors for humidity, temperature, air quality and CO2

    AERASGARD® RFTM-CO2-W LCD

    1501-61B6-7321-200

    442,05 €

    incl. VAT 526,03 €

  • Technisches Produkt mit geschlossenem Gehäuse
    CO2 + VOC
    Patented

    KLQ-CO2-W

    1501-8111-7301-600

    443,61 €

    incl. VAT 527,78 €

  • KLQ-CO2-AW

    1501-8111-E301-600

    443,61 €

    incl. VAT 527,78 €

  • RLQ-CO2-Modbus

    1501-61B1-6001-600

    454,12 €

    incl. VAT 540,38 €

  • Raumtemperaturfühler mit geschlossenem Gehäuse
    °C + % RH + PM

    Room sensors for humidity, temperature, particulate matter (PM) and CO2

    AERASGARD® RFTM-PS-W

    1501-2116-7301-000

    455,24 €

    incl. VAT 541,69 €

  • CO₂-Sensor mit Schutzrohr
    CO2

    Room pendulum CO2 sensor

    AERASGARD® RPCO2 LCD

    3CON-0206-0001-000

    524,52 €

    458,32 €

    incl. VAT 545,34 €

  • Feuchte- und Temperaturfühler mit Display im geschlossenen Gehäuse
    °C + % RH + CO2
    Si Imp Modbus

    Room sensors for humidity, temperature and CO2

    AERASGARD® RFTM-CO2-Modbus P LCD

    1501-61B6-6521-271

    461,16 €

    incl. VAT 548,75 €

  • Technisches Produkt mit Display und Schutzrohr
    °C + % RH + CO2
    AOS signal

    KFTM-CO2-AW LCD

    1501-8116-E371-600

    464,63 €

    incl. VAT 552,79 €

  • CO₂-Sensor mit Display
    CO2

    Surface-mounted CO2 sensor | CO2 sensor

    AERASGARD® ACO2-W LCD

    1501-7110-7371-200

    467,58 €

    incl. VAT 556,31 €

  • Technisches Produkt mit geschlossenem Gehäuse in Gesamtansicht
    °C + % RH + CO2 + VOC

    RFTM-LQ-CO2-W

    1501-61B8-7301-600

    467,86 €

    incl. VAT 556,59 €

  • Aufputz Feinstaubfühler/ Feinstaubsensor mit geschlossenem Gehäuse
    PM

    Surface-mounted fine dust sensor/ fine dust sensor

    AERASGARD® APS-SD-U

    1501-7130-1001-000

    470,00 €

    incl. VAT 559,30 €

  • CO₂-Sensor mit Schutzrohr
    CO2

    Room pendulum CO2 sensor

    AERASGARD® RPCO2-W LCD

    3CON-0206-1001-000

    541,00 €

    472,72 €

    incl. VAT 562,40 €

  • KLQ-CO2-Modbus

    1501-8111-6001-600

    481,61 €

    incl. VAT 573,00 €

  • RLQ-CO2-W LCD

    1501-61B1-7321-600

    483,27 €

    incl. VAT 575,04 €

  • Feuchte- und Temperaturfühler mit Display
    °C + % RH + PM
    Si Imp Modbus

    Room sensors for humidity, temperature and PM

    AERASGARD® RFTM-PS-Modbus LCD

    1501-2116-6021-200

    485,17 €

    incl. VAT 577,32 €

  • Kanaltemperaturfühler mit Display in Frontalansicht
    CO2
    Si Imp Modbus

    Duct sensor

    AERASGARD® KCO2-Modbus LCD

    1501-8110-6071-200

    495,07 €

    incl. VAT 589,12 €

Why is an air quality sensor useful?

Modern air quality sensors continuously provide precise data on the current indoor air quality. These measurements form the basis for intelligent control systems in building automation – for example, for controlling ventilation or air conditioning systems. As soon as the sensor registers changes, targeted measures can be initiated. This not only improves air quality, but also ensures efficient use of energy, which both reduces costs and protects the environment.

  • Fatigue and poor concentration

    Persistently poor indoor air quality with elevated CO₂ levels often leads to fatigue, headaches, and poor concentration. This has a direct impact on performance and well-being, especially in offices, schools, and living spaces. An air quality sensor can detect these problems early on and improve them through targeted measures.

  • Respiratory diseases

    n the long term, insufficiently monitored air quality can lead to serious respiratory diseases. Particularly high levels of VOCs (volatile organic compounds) impair health and increase the risk of chronic complaints. Regular monitoring with modern air quality sensors protects against these risks and ensures a healthy indoor climate.

How do air quality sensors work?

Modern air quality sensors, CO2 transmitters, and mixed gas detectors use highly sensitive measurement methods. They continuously record various parameters such as CO2, temperature, humidity, and VOCs. The data is transmitted in real time to the building management system (BMS) so that ventilation and air conditioning can be adjusted automatically. As soon as the air quality sensor detects that certain limit values have been exceeded, it emits a signal. This creates an intelligent, demand-based ventilation concept that not only improves air quality but also saves energy.

What values are recorded?

Depending on the selected device, the following measured values are determined:

  • CO₂ concentration
  • Temperature
  • Humidity
  • VOC pollution
  • Mixed gas values

They thus provide a comprehensive basis for a healthy and energy-efficient indoor climate.

Your variety from S+S for every need

Whether for office buildings, schools, production halls, or private living spaces, S+S Regeltechnik offers a wide range of air quality sensors for a variety of requirements. From compact solutions to complex systems for building automation, there is a suitable sensor for every need.

Discover air quality sensors now

Did you know?

Studies show that optimal air quality can increase productivity by up to 15%. Air quality sensors therefore not only contribute to health, but are also a real economic factor.

The key to success: transparency, modularity and communication

A well thought-out retrofit follows a modular, future-proof approach:

  • TransparencyData must be easily available and analyzable - ideally in real time.
  • ModularityNew components should be able to be added or replaced at any time without jeopardizing the overall system.
  • CommunicationOpen protocols and standardized interfaces are crucial to ensure the future viability of automation.

Especially in the context of IoT and cloud-based systems, it is clear that a retrofit can be the gateway to the world of smart buildings - but only if interoperability is consistently taken into account.

Collapsible content

We also manufacture individually

Do you have special requirements? As a manufacturer with our own production facilities in Germany, we are also able to produce products outside of the standard range at any time.

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