FEATURES: Wide wavelength range, satisfying requirements of various fields. The split-beam ratio monitoring system provides accurate measurements and enhances baseline stability. Four options for spectral bandwidth selection, 5nm, 4nm, 2nm and 1nm, made according to customer's need and satisfying the requirements of pharmacopoeia. Fully automated design, realizing easy measurement. Optimized optics and large scale integrated circuits design, light source and receiver from world famous manufacturer all add up to high performance and reliability. Rich measurement methods, wavelength scan, time scan, multi-wavelength determination, multi-order derivative determination, double-wavelength method and triple-wavelength method etc., meet different measurement requirements. Automatic 10mm 8-cell holder, changeable to automatic 5mm-50mm 4-posion cell holder for more choices. Data output can be obtained via a printer port. Parameters and data can be saved in case of power failure for user's convenience. PC controlled measurement can be achieved via RS-232 interface (USB port) for more accurate and flexible requirements.