With shockproof vertical and horizontal vials set in a robust aluminium body with a milled bottom surface to ensure that the level rests flat against surfaces. The horizontal vial has a viewing angle of 300°, ideal for making overhead measurements. Die cast body, electrostatic powder coated. Level vial accuracy guaranteed for 10 years.

Accuracy: horizontal 0.029° (0.5mm/m),
vertical 0.043° (0.75mm/m).

81S: with non-magnetic base.
81SM: with magnetic base (ferrite).
81SREM-25H: Two super strong rare earth magnets for fantastic sticking power to steels and scaffold tubes.