SCR sensors for heavy duty trucks are crucial components in the Selective Catalytic Reduction (SCR) system, which helps reduce harmful emissions. These sensors monitor and regulate the levels of nitrogen oxides (NOx) by ensuring the proper amount of diesel exhaust fluid (DEF) is injected into the exhaust stream. The sensors play a key role in maintaining compliance with environmental regulations and optimizing the performance of the emission control system. Designed for various truck models, SCR sensors are integral to keeping the system functioning efficiently under heavy-duty conditions.