1.Visible Spectrophotometer 1600G 2.Wavelength range:320-1100nm,autoscan,Slit width:4 nm 3.Wavelength accuracy:1nm Visible Spectrophotometer 1600GAll spectrophotometers feature ... integrated design assures long-term stability and durability. All spectrophotometer are intended to be utilized for research, development, quality ... lbs)Shipping dimensions18.5 Kg (40.5 lbs) Visible Spectrophotometer 1600G