Kavaljer, Kåhre, Salo and Swayze form the team reviving refractometer technology since 40 years. Design and manufacturing of inline optical liquid concentration monitors based on refractive index is an art mastered by few. The company management track record in combination with industry network effects gives a sharp edge to Jan Kåhre’s refractometer heritage. The DCM product family is presented with the grand motivation to secure the supply chain for critical chemical processes for next decades.