NIKON AE7 Automatic Level

Features a waterproof, nitrogen-filled, high-power telescope to capture precise measurements. The automatic air-dampened compensator prevents magnetic interference. An endless horizontal fine drive ensures smooth, precise pointing and angular measurement. The standard optical sight lens allows you to find the target quickly and accurately. Includes: Carrying case, adjusting pins, and lens cap included.

Specifications: Telescope – Tube length: 8.7Ý ( 220 mm) ; Image: Erect; Effective diameter of objective lens: 1.57Ý ( 40 mm) ; Magnification: 30x; Field of view: 1° 30′ ( 2.6′ at 100′ ) ; Resolution power: 3Ý ; Minimum focusing distance: 0.98′ ( 0.3 m) ; Stadia ratio: 1: 100. Automatic compensator – Type: Wire-hung, air damper; Setting accuracy: ± 0.35Ý ; Range: ± 16′ . Level vial sensitivity – Circular level: 10′ / 2 mm. Standard deviation ( 1-km double-run leveling) – Without micrometer: ± 1.0 mm; With micrometer: ± 0.45 mm. Weight – Instrument: 3.7 lbs.; Case: 4.0 lbs.