Display Mode: 4 digits LEDLamp: Hamamatsu original L2D2 long life(above 3000 hours) Deuterium Lamp and RoYal long life (above 10000 hours) Halogen-Tungsten Lamp with patent technical CombinationInterface: RS232 SerialMeasurement: 370×320×240mmWeight: 10KgFeaturesâ–²Curny-terner configuration diffraction grating monochromator, Aspherical light source optics & Precise grid, whole aluminum metal alloy die-castings.â–²Patent combinat Deuterium / Halogen-Tungsten lamp and spectral engery correction system.â–²Simple & clear keyboard operation is convenient to realize auto 0% & 100% adjustment and error-free T/A transformation.â–²Factor setting & direct concentration readout functions.â–²Serial interface, data processing software package & serial printer are spare parts.â–²Spacious sample compartment, 4 position cell rack, adaptable for 1-5 cm optical path rectangular cells.SpecificatiosWavelength Range:         200-960nmWavelength Accuracy:        ±2nmWavelength Reproducibility:     ≤0.5nmBand width:             2nmPhotometric Accuracy:       0.5%(τ) (NBS SRM930D)Photometric Reproducibility:     0.3%(τ)Stray Light:            ≤0.5%(ï´) (360nm, NaNO2) (220nm, NaI)Scale: TRANS:           0-199.9%ABS:               -0.3-2.999FACT:               1-9999CONC:              0-999Standard Parts List:2. Power cable            1 pc3. Operating manual         1 copy4. Certificate of quality checking     1copy5. Fuses (2 A)            2 pcs6. 1cm glass cuvette         2cases7. 1cm quartz cuvette         1 case8. 1cm 4position cuvette rack     1 pc9. Packing list             1 copyOptional Accessories and Spare Parts:1. Fuse(2A/3A)2. 1cm quartz hermetical cuvette3. Glass cuvette 1cmã€2cmã€3cmã€5cm4. 5cm cuvette rack(suitable for 1-5cm cuvette)5. Data processing software package6. Optional serial printer7. RS-232C Serial cable8. Pre-aligned lamp9. Praseodymium-neodymium optical filter10. Holmium oxide optical filte