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| Product Name | YUEFENG 722（N） Visible Spectrophotometer | ShangFen 722N Visible spectroPhotoMeter |
| Product Price | $307.00 | In coming |
| Details | Details | |
| Model comparison | ||
| Spectral Type | Visible | Visible |
| Optical Path | Single-Beam | Single-Beam |
| Dispersion | Grating | Grating |
| Detection | ||
| Light Source | Tungsten | Tungsten |
| Wavelength | 200-1000nm | 325-1100nm |
| Accuracy | ≤2nm | ≤2nm |
| Bandwidth | 2-4nm | ≤2nm |
| Detector | Others | |
| Stray Light | ≤0.5%T | ≤0.1%T |
| Parameter comparison | ||
| Optical inspection system | Single beam of light, 1200 Diffraction gratings | |
| Light spectrum Bandwidth | 4nm | 2 nm |
| Wavelength Range | 340nm~1000nm | |
| Wavelength Precision | ±2nm | ±2 nm |
| Wavelength Repeatability | ≤1.0nm | ≤1 nm |
| Photometric Range | 0~100%(T),-0.050~3.000(A) | 0.0 ~ 200.0%T；-0.097 ~ 4.000A；0.000 ~ 9999C |
| Photometric Precision | ±1.0%(T) | ±0.5%T；±0.004Abs（0 ~ 0.5A）；±0.008Abs（0.5 ~ 1A） |
| Luminosity Repeatability | ≤0.5%(T) | ≤ 0.2%T；0.002Abs（0 ~ 0.5A）；0.004Abs（0.5 ~ 1 A） |
| stray light | ≤0.5%(T)(360nm,JB400) | ≤ 0.1% (T) (measured as NaNO2 at 360 nm) |
| Operating Mode | Absorption, concentration factor, direct reading of concentration | |
| data output | RS232 interface | |
| Illuminant | Tungsten halogen lamp | |
| Set Range | 0~ 9999 (concentration value or factor) | |
| Options | Bright thermal printer | |
