The MMCS6 multiple color sensors for accurate and fast in-line color measurement have been released by Mazet GmbH. They bridge the gap between three-range sensors and spectral measurement devices and are based on the proven technologies of the compact and price-to-performance ratio-optimized semiconductor sensors with integrated interference filters. They can take a color measurement with seven spectral characteristics in the range of 380 to 780 nm, on the basis of spectral estimation. With RGB and true color sensors, the company offers semiconductor-based sensors with RGB or XYZ interference filters for fast and long-term stable color detection and absolute color measurement to the CIE/DIN5033 standard. For these sensors, in connection with white-light LEDs, accuracies in the color space that exceed the capacity of the human eye are possible. The accuracy is determined by the type of light source and the calibration of the sensors.