1) Target size: 2.3m×2.3m, reflectance: 30%, visibility ≥ 8km. 2) Target size: 2.3m×4.6m, reflectance: 30%, visibility ≥ 10km. 3) Target size: 2.3m×4.6m, reflectance: 30%, visibility ≥ 15km. 4) Distance measuring accuracy: ≤ 1m. The accuracy is optional. 5) The distance measuring frequency of distance measuring modules made in China is 1~5 Hz. |