CO₂ Measurement

Transmitters for measuring air velocity / flow in building automation, pharmaceutical applications or clean rooms. Excellent long-term stability and reproducibility are guaranteed by the high quality air flow sensors in thin-layer technology.

Products Range

CO₂ Data Logger

Accurate recording of CO₂ concentration along with humidity. temperature, pressure and electrical signals. 

CO₂ Hand-held Meter

Very robust and highly insensitive to pollution. Measurement range up to 20m/s (4000 ft.min).
Voltage or Mobdus RTU output.

CO₂ Modules and Probes

Compact, user configurable, temperature and pressure compensation, long term stable, low power consumption

CO₂ Transmitters

Room, wall and duct mountCO₂ sensors for demand controlled ventilation and process control. Avaliable also with additional humidity and temperature outputs.

Wireless CO₂ Sensors

High quality wireess transmitters for CO₂ humidity and temperature measurement.

Measuring Method

The E+E CO₂ sensors feature the dual wavelength/dual detector NDIR principle. One detector is tuned to 4.2 µm wavelengths, which is absorbed by CO₂, the second detector on 3.9 µm, which is not affected by any gas. For every single measurement the CO₂ concentration is calculated from the outputs of the two detectors.

This procedure is highly insensitive to pollution and appropriate for both HVAC and industrial process control.

A multiple point CO₂ and temperature adjustment procedure leads to excellent CO₂ measurement accuracy over the entire temperature working range.

Several E+E CO₂ measuring devices feature also temperature, humidity and barometric pressure measurement.

Product Range


  • HVAC sensors
  • Sensors for agriculture and industrial process control
  • OEM modules and probes
  • Data loggers
  • Hand-held instruments



  • Demand controlled ventilation
  • Indoor air quality
  • Stables
  • Incubators
  • Greenhouses
  • Industrial process control


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