... LCDSELON SE-752 UV visible Spectrophotometer, Wavelength setting, Single-point curve calibration uv visible spectrophotometer, uv spectrophotometer, spectrophotometer FEATURES:1 ... ,Wavelength setting by keyboard-input.2,Single-point curve calibration and multi-point curve calibration ( Up to 12 points).3, ... SELON SE-752 UV visible Spectrophotometer, Wavelength setting, Single-point curve calibration