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Fison Single Beam UV-Visible Spectrophotometer performs precise UV-Vis spectral analysis across a 190–1100 nm wavelength range, supporting transmittance, absorbance, concentration, and energy measurement modes. Its ±0.5 nm wavelength accuracy, 0.001 A/h stability at 500 nm, and ≤0.05%T stray light maintain measurement precision and support continuous operation in busy lab settings. Automatic wavelength adjustment and power-off data protection reduce manual recalibration and prevent data loss across repeated testing cycles. Manufactured for medium- to high-volume chemical, pharmaceutical, and biological laboratories, the UV-Visible spectrophotometer connects via USB and parallel printer interfaces with PC software-based spectrum scanning and a 10-point calibration curve for accurate, audit-ready workflows in research and clinical environments.