Automatic level Nikon AC-2s

Spesifikasi - Nikon AC-2S Automatic Level Technical Details Built-in magnetic dampened automatic compensator levels the line-of-sight within the range of 16 inches with setting accurate to within 0.5 inch Horizontal tangent knobs have an unlimited range and can be operated with either hand A friction brake enables quick, easy setting and base plate designed for flat- or domed-head tripod mounting Water-resistant body construction allows use in light rain or dusty conditions Carrying case included Specifications: Telescope - Tube length: 7.5? ( 190 mm) ; Image: Erect; Effective diameter of objective lens: 1.2? ( 30 mm) ; Magnification: 24x; Field of view: 130' ( 2.6' at 100' ) ; Resolution power: 3.5? ; Minimum focusing distance: 2.46' ( .75 m) ; Stadia ratio: 1: 100. Automatic compensator - Type: Wire-hung, air damper; Setting accuracy: 0.5? ; Range: 16' . Level vial sensitivity - Circular level: 10' / 2 mm. Standard deviation ( 1-km double-run leveling) - Without micrometer: 2.0 mm. Horizontal circle - Diameter of circle: 4.3? ( 110 mm) ; Minimum increment: 1/ 1 g; Reading estimation: 0.1/ 0.1 g. Weight - Instrument: 2.8 lbs.; Case: 2.7 lbs.