| Photometric unit | GU |
| Measurement range | 0~2000GU |
| Precision | +/- 1.5 (relative to JJG 696-2002 reference standard) |
| resolution | 0.1GU, Repeatability : +/- 0.5GU, error of indication: less than +/- 1.2GU |
| projection angle | 20 °, 60 ° and 85 ° |
| Fog Shadow Unit | HU resolution 0.1HU, Repeatability +/- 0.2HU, reproducibility +/- 1.5HU |
| Measurement area | 7X14mm (elliptical) |
| numerical memory | 56 groups |
| Environmental temperature | 0~40°C |
| Relative Humidity | No more than 85% |
| Power Supply | 2*1.5AAA |
| size | 140x45x75mm |
| Weight | Approximately 310g (including battery) |
Warranty days: 730 days
1. For product quality problems caused by non-human products of instruments and equipment, the manufacturer will provide free warranty services during the warranty period;
2. There is no warranty period for fragile and consumable parts, and if you find product quality problems after receiving the goods, please apply for return and exchange within 7 days, and you will not wait for the overdue ones;