About Us

Welcome to Diesel Emission Professional -DEP！
Your trusted partner in clean, efficient diesel technology.

At DEP, we specialize in the independent development and production of NOx sensors and PM sensors for both OEM and aftermarket applications. With a commitment to precision and durability, our emission control solutions are engineered to meet the highest global standards.

Our products are widely distributed across Europe and Asia, serving fleets, repair networks, and distributors who demand consistent quality and performance.