B-30 Sokkia Waterpass | Harga dan review

Specifications Model : B30 Telescope Length : 215mm ( 8.46in.) Magnification : 28x Objective aperture : 36mm ( 1.42in.) Resolving power : 3.5 " Field of View : 1° 25' ( at 100m/ 328ft.) : ( 2.5m / 8.2ft.) Minimum focus : 0.2m ( 7.9in.) from end of telescope 0.3m ( 1ft.) from instrument center Image : Erect Reticle pattern : Cross line Stadia constant : 0 Stadia ratio : 100 Focusing knob : 1-speed Sighting aid : Peep sight Lens hood : - Accuracy ( standard deviation for 1km double run leveling) Without micrometer : 1.5mm ( 0.06in.) With micrometer : - Compensator Type : Pendulum compensator with magnetic damping system Setting accuracy : 0.5 " Working range : ± 15' Circular level Sensitivity : 10' / 2mm Mirror : Plane mirror Horizontal circle Diameter : 103mm ( 4.1 in.) Graduations : 1° / 1gon General Horizontal motion drive : Clampless, endless, double-sided knobs Water resistance : IPX6 ( EC 60529: 2001) Operating : -20 to + 50° C ( -4 to + 122° F) temperature Width : 130mm ( 5.12in.) Length : 215mm ( 8.46in.) Height : 140mm ( 5.51in.) Weight : 1.7kg ( 3.7 lb.)