The main purpose of NOx sensors is to protect the environment and nature by minimizing exhaust gas emissions. This sensor system consists of a ceramic NOx sensor connected to a microprocessor and communicates with the vehicle's engine management to ensure optimum control of key engine parameters such as exhaust gas recirculation, fuel-air ratio and urea injection for SCR systems.

MCT sensors are used in passenger cars, light and heavy commercial vehicles in conjunction with SCR emission control. They are also ideal for controlling the regeneration cycles of NOx storage catalysts, which are found not only in diesel vehicles but also in modern direct injection gasoline engines. Offering environmentally friendly driving experiences, NOx sensors both optimize performance and minimize emissions.