The unique SenseAir Technology is based on the principle of infrared (IR) absorption of radiation, called the non-dispersive infrared (NDIR) technique. Gas molecules are absorbing radiation (electromagnetic energy) at spectral regions where the radiated wavelength matches internal molecular energy levels. By detecting the amount of IR radiation absorbed within a narrow band, one gets a measure of the number of gas molecules, free from interference of other species. SenseAir  has a long experience in CO2 measurements. Nowadays, we are also targeting other gases. Please, read more about the major technical areas: Automatic Baseline Correction (ABC), Electronics & Firmware, Gases & Applications, Lambert – Beers law, Optical cavity design, Spectroscopy, Pressure Dependence and Technical Notes