Bosch GOL 26 D + BT 160 + GR 500 Optical Level Set 061599400E This Bosch Optical Level is designed for outdoor use due to sturdy metal housing with dust and splash protection (IP54). Its robust design with built-in target collimator and integrated circular vial. Is also includes a compensator lock for safe transport. Ideally suited for concrete form and foundation levelling, elevation: point transfer, transfer heights for the cut and fill process, control of height transfer, angle measurement and determine height differences for drainage applications. FEATURES 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 Lens for adjusting the cross hair to your eye High precision (1.6 mm/30 m) over long distances Endless degree/angle setting using knobs on both sides with friction-braked rotation SPECIFICATION Unit of Measure: 360 degrees Levelling Accuracy: 1.6 mm at 30 m Tripod Thread: 5/8\" Length: 215 mm Width: 135 mm Height: 145 mm Weight Approx: 1.7 kg