Our spectrometers and fiber optic probes were made for demanding production environments. It opens wide possibilities for continuous observation of extrusion and other processes without blind spots. The overall technology is easy to control and use. It is based on inline UV-Vis, NIR, and Raman spectroscopy. In some applications, the usage of two probes to monitor two production lines at the same time is possible with one system. Our technology is fitted to the existing manufacturing facilities, boosting their productivity and quality.