SELON SE-722 Visible Spectrophotometer *measure the intensity as a function of the ... :≤0.5%T(360nm)Stability:≤±0.5%T/5minSELON SE-722 VISIBLE SPECTROPHOTOMETER, Wavelength setting, multi-point curve calibration Visible Spectrophotometer ... % deposit required before production, 70% balance before delivery. SELON SE-722 Visble Spectrophotometer, Wavelength setting, multi-point curve calibration