Copyright @2023 Vertex Group 10% Off Sokkia B40a Automatic Level- Hurry up Model: Sokkia B40A Sokkia B40a is top of the line auto level for survey & distance measure. Leveling Accuracy: B20 – ±0.7mm; B30 ±1.5mm; B40 ±2.0mm, Telescope ... Explore Product