| Model |
WSB-0 (No screen version) |
WSB-1 (Professional version with screen) |
WSB-2 (Screen enhanced) |
| Geometry | 45 / 0 ( GB / T 3978) | ||
| Test index | Blue brightness:R457/ISO2470 |
9 whiteness indexes:(ASTM,CIE,Ganz,Hunter,Tauble,
Berger,AATCC,R457/IOS2470,GB/T17644)
|
|
| Lighting source | LED(Full band balanced LED light source) | ||
| Measuring caliber | Diameter 4mm | ||
| Resolving power | 0.1 | 0.01 | |
| Test range | 0-200 | ||
| Zero drift | <0. 2/10min | <0.1/10min | |
| Indication drift | <0. 3/3min | <0.1/3min | |
| Repeatability※ | <0.1 | ||
| Test time | 1.5s | ||
| Interface | USB，Bluetooth | ||
| Screen | No screen | IPS full color screen（135*240,1.14inch） | |
| Power Supply | 460mah, a single full charge can be measured 7000 times continuously | ||
| Language | Chinese, English | ||
| Calibration | Automatic calibration | ||
| Software support | Andriod,IOS,Wechat applet,Windows | ||
| Weight | About 75g | ||
| size | Diameter:33mm，Height:84mm | ||
| Over measured | Yes | ||
| Storage | App mass storage | ||
※ After the whiteboard is calibrated, measure the standard deviation of the whiteboard 30 times at an interval of 5 seconds
