This model has a cast aluminium profile with a bevelled shape, making it one of STABILA's most robust spirit levels. The vials and the milled measuring surface are precisely aligned to each other during the production process and then permanently connected to each other, ensuring maximum measuring accuracy. This gives the 81 S an exceptionally long service life when used on construction sites.
Particularly suitable for professionals who subject their tools to high loads, e.g. in bricklaying.