Description
The Northwest Instrument NTB11 Tribrach features a built-in optical plummet and smooth leveling controls for precise setup over survey points. With a wide 1.5′ to 50′ focusing range and 10′ circular vial sensitivity, it ensures quick, accurate instrument alignment for total station, GNSS and prism setups during layout and control work.
Its universal 5/8″ x 11 mounting base fits most tripods and prisms, making it a versatile option for survey crews who need consistent accuracy and durable field performance.
