Extremely robust ? ideal for outdoor useDesigned for outdoor use due to sturdy metal housing with dust and splash protection (IP54)Robust design with built-in target collimator and integrated circular vialCompensator lock for safe transportFEATURES:Levelling accuracy 1.6 mm ? 30 m ? Measuring accuracy of 1.6 mm/30 mDual levelling element ? Prevent errors due to dual levelling elementMagnification up to 26xWorking range 100 m ? Range up to max. 100 m