WATERPASS TOPCON AT-B4

The compensator of AT-B series incorporates four suspension wires made of super-high tensile metal that features minimal thermal expansion coeffcient, providing unmatched durability and accuracy even in the harshest environmental conditions. Finely tuned magnetic damping system quickly levels and stabilizes the line of sight despite the fine vibrations present went working near heavy equipment or busy roadways. Features : 24x Magnification, Waterproof to IPX6 rating, short focus ( 1.6 ft. min.) magnetic damping, 360-degree horizontal circle, sighting guide, 1: 100 stadia, approximate range-250 feet. Specification Telescope: Length ( mm/ in.) : 215/ 8.46 Magnific ation : 24x Objective Lens ( mm/ in.) : 32/ 1.26 Relative Brightness : 1.56 Field Of View : 1° 25' Resolving Power : 4.0" Minimum Focus ( m/ ft.) : 0.53/ 1 Stadia Constant Stadia Ratio : 100 Sensitivities of Levels: Main Level ( / 2mm) : — Circular Level ( / 2mm) : 10' Tilting Range : — Automating Leveling: Setting Accuracy ; ± 0.3" Compensating Range ; ± 15' Accuracy 1km Double Run Level: Without Optical Micrometer ( mm) : ± 2.0 With Optical Micrometer ( mm) : — Horizontal Circle: Diameter ( mm/ in.) : 103/ 4.1 Minimum Division ; 1° ( 1gon) Weight: Instrument ( kgs/ lbs.) : 1.7/ 3.7 Water Resistance ; IPX6 Optional Accessories: - Diagonal Eyepiece - Optical Micrometer - Illuminator 3 - 40x Eyepiece - Centering Eyepiece In The Box * Allumunium Tripod * Rambu ukur / levelling staff