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| Product Name | YongLiDa SBDY-I Digital whiteness Meter | 3NH NR4520 whiteness Analyzer |
| Product Price | $484.00 | $790.00 |
| Details | Details | |
| Model comparison | ||
| type | desktop | handheld |
| Whiteness | Blue light whiteness | Fluorescent whitening amount |
| Measuring range | 0~100 | |
| Sexual repeability | ≤0.3 | |
| Indication accuracy | 0.1 | |
| Measurement aperture | f21 ~ 30mm | |
| Parameter comparison | ||
| Measurement Range | 0-100% | |
| Display mode | digital display | |
| resolution | 0.1 | |
| Measurement aperture | 30mm | |
| test condition | 45℃ | |
| Measurement mode | R457 blue light whiteness | |
| Zero drift | ≤0.2 | |
| Indication drift | ≤0.3 | |
| Passive Voltage Stability | 0.1 | |
| Measurement Repeatability | ≤0.3 | |
| Power supply | 220V±20% | |
| power consumption | 30W | |
| Dimension | 340x270x280mm | |
