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| Product Name | LANDTEK WM-106 Whiteness Meter | 3NH NR4520 whiteness Analyzer |
| Product Price | $227.00 | $800.00 |
| Details | Details | |
| Model comparison | ||
| type | handheld | handheld |
| Whiteness | Blue light whiteness | Fluorescent whitening amount |
| Measuring range | 0~200 | |
| Sexual repeability | ≤0.1 | |
| Indication accuracy | 0.1 | |
| Measurement aperture | f11 ~ 20mm | |
| Parameter comparison | ||
| Measurement Range | 0~120 | |
| resolution | 0.1 | |
| test condition | 45/0 | |
| Illuminant | LED 457 nm Illuminant | LED Illuminant |
| Whiteness formula | Blue light whiteness WB = R457 | |
| Measurement aperture | ≤15mm | |
| Zero drift | ≤0.1 | |
| Indication Stability | ≤0.5 | |
| Measurement Repeatability | ≤0.1 | |
| Operating conditions Temperature | 0~40℃ | |
| Operating Conditions Humidity | <85 %RH | |
| power supply | 4 AA batteries (optional AC power supply) | |
| Size host | 156x67x28mm | |
| Size Split Probe | Ф44x55mm | |
| weight | 200G (without battery) | 400g |
