This classification covers spectrophotometers used for material analysis, quality control, and component inspection in manufacturing. It includes UV-visible spectrophotometers, infrared spectrophotometers, atomic absorption spectrophotometers, and fluorescence spectrophotometers. These analytical instruments are essential for quality assurance in manufacturing processes, including component analysis of metal materials, quality inspection of resins and coatings, concentration management of plating solutions, and purity measurement of chemicals. We offer models ranging from single measurement devices to systems with automatic samplers, suitable for various production scales. Unlike colorimeters and turbidimeters, these high-precision analytical instruments are positioned as equipment capable of quantitative and qualitative analysis at the molecular level with different measurement principles.