Seco Single Prism Traverse Kit – Black The Seco 2159-01-BLK Single Prism Traverse Kit is a complete, high-precision solution designed for traverse, control, and monitoring applications. The kit includes a 62 mm silver-coated prism in a sealed canister, delivering reliable distance measurements with <5″ angular accuracy . An adjustable, reversible tilt target with sighting collimator allows for precise pointing, while supporting 0, -30, and -40 mm prism constants for flexible survey configurations. The system is built around a rotating tribrach adapter (#2153-10-BLK) with a 2.5X twist-focus optical plummet , 60-second adjustable plate vial , and 360° precision rotation for accurate alignment. It is compatible with prisms using a 24.9 mm bayonet mount and provides 0.5 mm centering accuracy at 1.5 m . Also included is a tribrach (#2153-04-BLK) with three-screw leveling, an 8-minute circular vial, and a 5/8" x 11 base thread . The full kit is housed in a durable hard shell case for protection and transport. Key Features • 62 mm silver-coated prism with sealed canister (#6400-10) • <5″ angular accuracy for precise measurements • 0 / -30 / -40 mm prism constants for flexible configurations • Adjustable, reversible target with sighting collimator • Rotating tribrach adapter with optical plummet (2.5X twist focus) • 360° precision rotation and 60-second plate vial for alignment • Compatible with 24.9 mm bayonet prism systems • 0.5 mm centering accuracy at 1.5 m • Includes tribrach with 5/8" x 11 base thread and 8-minute vial • Supplied in hard shell carrying case