Builders Transit Level Leveling Type Leveling Screws Magnification 22X Aperture 22 mm Working Range - Maximum 200 ft Field of View 1 Degrees 6 (2 /100 ) Horizontal Graduations 1 Degrees Focus Diameter - Minimum 4 ft Accuracy +/-3/16 in @ 100 ft Horizontal Range 90 Degrees Includes Case Number of Lenses 6 Features Glass Reticle Reticle Cross Lines IP Rating Not Rated Vernier Reading 15 arc minutes Vertical Graduations 1 Degrees Vertical Range 45 Degrees