| Technical Parameters | 
| Wavelength coverage | 320~1100nm | 
| Spectral bandwidth 
 
 | 4nm | 
| Optical System | 1200wires/mm,Single Beam,high-performance holographic grating | 
| Wavelength Accuracy 
 | ±0.5nm | 
| Wavelength Repeatability | ≤0.2nm | 
| Photometric Accuracy 
 | ±0.002A(0~0.5A)  ±0.004A(0.5~1A) ±0.3%T(0~100%T) | 
| Luminosity Repeatability | ≤0.001A(0~0.5A) ≤ 0.002A(0.5~1A)  ≤0.15%T(0~100%T) | 
| Stray Light | ≤0.05%T (360nm) | 
| Wavelength setting and zero setting | Automatically | 
| Luminosity Range | -0.3-3A, 0-200%T, 0-9999C | 
| Baseline wander | ±0.001A/h(500nm after preheating) | 
| Baseline glancing flatness | ±0.002A | 
| Noise Level | 0.0005Abs(500nm) | 
| Working Manner | A, T, C, E | 
| Light Source | Imported long-lifed Tungsten lamp | 
| Detector | Imported Silicone LED | 
| Display Modes | Large LCD screen(128*64 Dots) | 
| Output | USB Port & Parallel port(printer) | 
| Power Requirement | AC 220V/50Hz or AC110V/60Hz | 
| Dimension | 490×360×240mm | 
| Weight | 12kg |