- Arc graduated in degrees 0-60º
- Percent scale 0-100%
- Complete with scale, clamp lock and leather case
- Telescope measures 16cm long
Proline offers two sizes of quality-made eye levels which are affordable, accurate and easy to use. The Abney Eye Level consists of a fixed sight tube with a movable bubble that’s connected to a pointing arm and protractor scale. This surveyors instrument is used to measure degrees when bending pipe. Other uses include measuring percent of grade, topographic elevation and chain correction.