Optical Level GOL 26 D Professional Designed for outdoor use due to sturdy metal housing with dust and splash protection (IP54) Robust design with built-in target collimator and integrated circular vial Compensator lock for safe transport Target collimator for rough alignment Penta prism makes it easy to read the circular vial Large focusing knob for easy alignment Fast aperture for excellent staff reading High precision (1.6 mm/30 m) over long distances Endless degree/angle setting using knobs on both sides with friction-braked rotation Erect image Technical Data Unit of measure: 360 degrees Magnification: 26 x Levelling accuracy: 1.6 mm at 30 m Scope of delivery, brief description Allen key Plumb bob Adjusting pin Lens cover Carrying case