In many situations it is essential to be able to identify and quantify the gases present in an environment. The company Unitronic GmbH in Dusseldorf Germany has successfully simplified this sensing process and dramatically reduced costs thanks to its new type of ‘Artificial Nose’. The Unitronic Sensor Module with Virtual multifunctional Gas Sensor Array (USM-VGSA) uses a single conventional metal-oxide sensor which can identify a wide range of organic and inorganic compounds. This novel approach results in significantly reduced costs for applications where the analysis of air constituents is required.