| Measurement and digital display | Whiteness, fluorescence (whitening) whiteness, opacity (%), etc. |
| Zero drift | ≤0.1 |
| Indication drift | ≤0.1 |
| Error of indication | ≤0.5 |
| Repeatability | ≤0.1 |
| Mirror reflection error | ≤0.1 |
| Specimen size | Test plane ≥ 0019 30mm, thickness ≤ 40mm |
| Power Supply | AC 170~264V, 50Hz, 0.2A |
| Operating Environment | Temperature 0~40 ℃, Relative Humidity does not exceed 85% |
| Dimensions | 365*260*425mm |
| Weight | 11kg |
Warranty days: 365 days