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| Brand | LICHEN |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Direct Manufacturer |
| Region of Origin | Domestic (China) |
| Model | WSB Series |
| Price Range | USD 170 – 475 |
| Power Supply | WSB-1: 5×AA alkaline batteries (DC 1.5 V) or AC 220 V / 50 Hz |
| WSB-2 | AC 220 V / 50 Hz |
| Display | LCD |
| Whiteness Formula | Blue Light Whiteness WB = R₄₅₇ |
| Measurement Range | 0–199 |
| Aperture Diameter | WSB-1: Φ15 mm |
| WSB-2 | Φ30 mm |
| Zero Drift | ≤0.2 / 10 min |
| Indication Drift | ≤0.3 / 3 min |
| Repeatability Error | WSB-1: ≤0.2 |
| WSB-2 | ≤0.3 |
| Net Weight | WSB-1: 0.4 kg |
| WSB-2 | 2.1 kg |
| Dimensions | WSB-1: 70 × 220 × 75 mm |
| WSB-2 | 260 × 330 × 250 mm |
| Calibration Standard | Certified National White Reference Tile |
| Preheat Time | 30 seconds |
| Compliance | GB/T 2913, GB/T 5950, GB/T 8940.1, GB/T 12097, GB/T 13025.2 |
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