Seop Automatic Level.Model NA532, (Leica Switzerland Designed) Specifications Standard Deviation for 1km Double-run Leveling : 1.0mm Telescope Magnification : 32× Telescope Image :Erect Effective Aperture Size of Object Lens :40mm Field of View : 1° 20 Shortest Sighting Distance :0.65m Stadia Multiplication :100 Addition Constants: 0 Compensator Type :X wire-hung and air-damping Compensator Working range : ± 15' Leveling Accuracy:± 0.3" Accuracy of Circular Level :8/2' mm Horizontal Circle 360° or 400Gon optional Net. Weight 1.65kg Standard Accessories: Adjusting Pin, Hex key, Desiccating Agent. Plastic Carry Case, Plumb Bob, User Manual, Imported Aluminum Tripod Stand, Imported Aluminum Staff Pole, Calibration Certificate