The LJ-1304 is a microprocessor-controlled, single-beam digital spectrophotometer designed for reliable measurements in the visible spectrum. Its standout feature is a versatile sample compartment accommodating both standard 10mm and long-path 50mm cuvettes, enhancing sensitivity for low-concentration samples. Complete with PC software for data acquisition, this instrument is ideal for routine analysis, quality control, and educational purposes, adhering to standard laboratory quality norms.