Surveying Instrument Optical Level Automatic Levels Japan B40A(B40A) The B series levels feature world class auto-compensation, allowing a stabilized line of sight for perfect measurements when working on busy sites or near heavy machinery. The IPx6 rating ensures that the B Series is protected against powerful water jets from all directions, meaning that it withstands sudden showers or torrential rainfall. The advanced protection design also deters clouding or condensation inside the telescope.
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