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        The spectrophotometer is an instrument which measures the amount of light of a specificed wavelength which passes through a medium. According to Beers law, the amount of light absorbed by a medium is proportional to the concentration of the absorbing material or solute present. Thus the concentration of a colored solute in a solution may be determined in the lab by measuring the absorbency of light at a given wavelength.  Wavelength (often abbreviated as lambda) is measured in nm.  The spectrophotometer allows selection of a wavelength pass through the solution.  Usually, the wavelength chosen which corresponds to the absorption maximum of the solute. Absorbency is indicated with a capital A

Features
  ※ The innovative optical layout and state of art mono-chromator with high grade blazed holographic grating ensure accuracy. Its integrated design assures long term stability and durability.
  ※ The precisely aligned detector and quality deuterium and halogen lamps enhance the precision across the UV/vis spectrum starting from 190nm and into the near-infrared 1100nm.
  ※ Online software upgrade capability via Internet(for stand-alone models)
  ※ Full A4 print-out of graphs and tables of results with popular inexpensive printers such as HP or Epson Deskjet.
  ※ Real-time clock for date and time stamping of results
  ※ Large LCD display (320*240 Dots Matrix)

Specifications:

Optical System	Double Beam(1200 Lines/mm Grating)
Wavelength Range	190-1100nm
Bandwidth	1.8nm
Wavelength Accuracy	±0.3nm
Wavelength Repeatability	0.2nm
Photometric Accuracy	±0.3%T
Photometric Repeatability	0.2%T
Photometric Range	-0.3-3A,0-200%T,0-9999C
Stability	± 0.001A/h @ 500nm
Baseline Flatness	± 0.001A/h
Noise	± 0.001A/h
Stray Light	≤0.05%T @ 220nm,360nm
Data Output Port	USB
Printer Port	Parallel Port
Display	320*240 Dots LCD
Lamps	D2  Lamp & W  Lamp
Detector	Silicon Photodiode
Power Requirements	AC   220V/50Hz or  110V/60Hz
Dimension	625*430*206mm
Weight	30kg