The CS 1521 HPLC System integrates a high-performance UV-VIS Detector designed to deliver fast, accurate, and stable detection across a broad wavelength range of 190–900 nm. Featuring an automatic optical path switching system, it provides seamless wavelength transitions for diverse analytical requirements. With an impressive data acquisition rate of up to 100 Hz, the detector captures even extremely narrow peaks with outstanding precision and sensitivity. Its wide linear range of 2.5 AU ensures accurate quantification of both low- and high-concentration samples. The detector supports a standard wavelength time program and wavelength-switching detection, enabling flexible method development for complex analyses. Designed for practicality and reliability, the module allows easy maintenance, quick light source replacement, and customizable flow cell options to match specific application needs. Combining speed, stability, and user-friendly operation, the UV-VIS Detector in the CS 1521 HPLC delivers consistently high-quality analytical performance for routine and advanced chromatographic applications.