WATERPASS SOKKIA B-20

The Sokkia B20 Engineer' s Grade Levels are tougher, smaller and tightly sealed against humidity and dust for superior performance in all conditions. Enjoy the reliability of the automatic compensator and the convenience of horizontal angle measurement. With all these features, you can be left to concentrate on the work knowing your level is the best in the industry. Specifikasi Magnification : 32x or 40x ( opt.) Resolving Power n/ a Field of View : 1° 20’ ( 2.3 ft. @ 100 ft.) Minimum Focus : 1 ft. ( 0.3m) Stadia Ratio : 1: 100 Compensator — PL1 ( split-image tubular vial) ; all others ( wire-hung; magnetically damped) Setting Accuracy : 0.3" Range : ± 15' Leveling Accuracy ( all models) — in 1.0 km ( 1 mile) of double-run leveling Standard Deviation : ± 1.0mm / .004 ft. w/ micrometer : ± 0.8mm / .003 ft. Level Vial ( all models) — circular Sensitivity 10' / 2mm In The Box * Allumunium Tripod * Rambu ukur / levelling staf