Precisely measures angles from a horizontal plane and is divided to single degrees over a 140 degree range. The level vial is graduated to 60 seconds per 2 mm. A right angled precision ground cross vial is mounted on the base. A movable vernier arm clamps at any position and allows reading of the angle to either one or five minutes depending on the model. It is ideal for leveling and aligning machinery, small platforms and fixtures. Radius arc 2.25”. Vernier arm 4.5”.