Description

* Model: AT-B2, AT-B3, AT-B4

* Magnification: 32x, 28x, 24x

* Circular level: 10’ / 2 mm

* Accuracy:

   - Per km double levelling: 0.7mm, 1.5mm, 2mm

   - With micrometter: 0.5mm (only AT-B2)

* Range: 0.3 - 100m

* Water-tightness and dust-tightness: IP X6