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| Product Name | jinghua 755B (automatic) UV-Visible SpectroPhotometer | YUEFENG UV756(PC) UV-Visible SpectroPhotometer |
| Product Price | $1493.00 | $1397.00 |
| Details | Details | |
| Model comparison | ||
| Spectral Type | UV-Vis | UV-Vis |
| Optical Path | Single-Beam | Single-Beam |
| Dispersion | Grating | Grating |
| Detection | Scanning | |
| Light Source | Tungsten | Tungsten Deuterium |
| Wavelength | 190-1100nm | 190-1100nm |
| Accuracy | ≤0.5nm | ≤0.5nm |
| Bandwidth | ≤2nm | ≤2nm |
| Detector | ||
| Stray Light | ≤0.05%T | ≤0.05%T |
| Parameter comparison | ||
| Type | ultraviolet-visible | |
| Type of light beam | Single beam of light | |
| Illuminant | Tungsten lamp | Deuterium lamp, tungsten halogen lamp |
| Light spectrum Bandwidth | 2nm | 2nm |
| Wavelength Range | 190~1100nm | 190m~1100nm |
| Wavelength Precision | ±0.5nm | ±0.5nm |
| Wavelength Repeatability | 0.2nm | ≤0.3nm |
| stray light | ≤0.05%T | ≤0.05%T(220nm，360nm) |
| Noise level | 0.0005A | 100%≤0.15%T；0%≤0.01%T |
| Stability | ±0.001A/h | |
| Baseline flatness | ±0.002A | ±0.002A |
| Transmittance Precision | ≤0.3%T | |
| Transmittance Repeatability | 0.1%T | |
| Transmittance Range | 0~200%T | |
| Absorption Range | -0.4~4A | |
| Display Range of concentration | 0~99999 | |
| wavelength drive | automatic | |
| regression equation | have | |
| dynamics | have | |
| data output | RS-232 | USB interface and PC software |
