Did you know?
When using any infrared technology for gas measurement other gases with a similar wavelength can show an increased CO2 value. There are no gases, or volumes of such gases, typically seen on our current applications which could cause such a cross gas effect. CO2 does occur naturally in air at approx. 400ppm, because of this you cannot zero calibrate the CO2 value on Geotech analysers as this would cause a negative offset.