The duct sensor is used in air ducts of ventilation and air conditioning plants to enhance room comfort and to optimize energy consumption by providing demand-controlled ventilation. The sensor acquires:

  • CO2 concentrations
  • VOC concentrations as an indication of odors in the duct air, such as tobacco smoke, body odor, or material fumes
  • The relative humidity of the duct air
  • The duct air temperature



  • The sensors cannot be used as safety devices, such as gas or smoke warning devices!
  • Do not use sensors outdoors!