Leosurvey high precision Manganese levelling staffs are used for Third-order and Fourth-order leveling. The levelling body is made of aluminum alloy material, which assures less possibilities of transformation during using. Additionally, light weight body helps the users to carry and perform. The levelling tape is made of Manganese Steel (Specification is 0.4×33mm). The coefficient of thermal expansion of Manganese Steel is (10.6~12.2) ×10^-6/℃/M. Small coefficient of thermal expansion and extra 3-kilogramme pulling force added at the top of levelling tape, make sure less external influence during the process of using.

Currently, regular optional lengths are 2 meters and 3 meters and all suitable for electronic level.  We can customize the staff with your requirements.

1.Staff tape is made of high quality Manganese steel. The coefficient of thermal expansion is very small (10.6~12.2 ×10^-6/℃/M)

2.Superior graduation accuracy and high quality image of stripes.

3.Body of the staff made of rigid aluminum profile with anodized surface. It makes sure it is not easy to get  deformed in the process of measurements and very convenient to carry.

4.The tape seated in a protection groove of staff profile and tensioned by soft spring to compensate extension coefficient of staff profile.

5.Foot plate of 304 stainless steel; hardened, smooth and ground.

6.Equipped with circular bubble and handles. Handles zinced and powder-coated.