Wavelength range:           195~1000 nm
Bandwidth:                           4.0 nm
Wavelength Accuracy:        ±2.0 nm
Transmittance accuracy: ±0.002A(0~0.5A);±0.003A(0.5~1A);±0.4%T(0~100%T) 
                                                (Use NBS 930D)
Stability:              Dark current drift: 0.1%T/3min
                             Light current drift: 0.3%T/3min
Noise:                 100%≤0.2%T; 0% ≤0.1%T
Stray light :         ≤0.3%T @220nm, 360nm
Dimension:          430mmX375mmX180mm(WXDXH)
Power supply voltage: AC220V or 110V ;Frequency 50Hz or 60Hz
(supply voltage for foreign trade can be customized according to customer's needs)
Weight:                10.0kg