Topcon's AT-B3 28x automatic level has a completely waterproof telescope (IPx6) and is, therefore, ideal for all kinds of wet-surveying operations, in light rain or tunnels.

The AT-B3 can focus on objects as close as 20cm (7.9 in.) which is suitable for close range work carried out by builders and contractors.

The compensator of AT-B series levels incorporate four suspension wires made of extremely high-tensile metal that features minimal thermal expansion coefficient, providing unmatched durability and accuracy even in the harshest environmental conditions. Its finely tuned magnetic damping system quickly levels and stabilizes the line of sight despite the fine vibrations present when working near heavy equipment or busy roadways.

Accuracy:

1.5mm per 1km double run

>1/16" @ 200 ft.