Seco Traverse Tribrach Adapter The Seco 2153-10-BLK Traverse Tribrach Adapter is a precision alignment tool designed for traverse and control applications requiring accurate centering and repeatable positioning. Featuring an integrated optical plummet with twist focus (2.5X magnification), it enables precise setup over control points, while the precision-machined rotating axis allows smooth 360° movement for accurate sighting. The adjustable height design ensures compatibility with standard three-prong tribrachs, making it a versatile solution for high-accuracy survey workflows. This adapter is also included in the Seco Single Prism Traverse Kit (2159-01-BLK) . Key Features • Optical plummet with twist focus (2.5X magnification) for precise centering • 360° precision rotation for accurate alignment and traverse work • 60-second adjustable plate vial for fine leveling control • Compatible with prisms using 24.9 mm bayonet mount • Adjustable height (100–120 mm) fits standard three-prong tribrachs • 0.5 mm centering accuracy at 1.5 m • Durable construction for high-precision field applications