08 Ago 330-1020nm Visible Spectrometer Spectrophotometer Tester Digital Display 721
Model: 721. Picture showing. Transmittance display range: 0-200%T. Absorption rate display range: -1.999- +1.999A. Concentration display range: 0一1999C. Spectral bandwidth: 4nm. Wavelength repeatability: 1nm....