ADS-VOC is space gaseous air pollutants sensor with analog voltage output 0 – 10 V and relays output with adjustable levels of switching. The sensor has a high sensitivity at low concentrations of pollutants in the air such as ammonium and hydrogen sulphide produced during decomposition of organic waste materials. It is suitable for ventilating room’s contaminated gaseous substances of organic origin, cooking fumes, cigarette smoke and etc.