Seco Contractor Series Tribrach with Laser Plummet The Seco 2153-02-BLK Laser Tribrach provides fast, visible centering using a bright 650 nm laser dot, making it ideal for low-light or high-visibility setup conditions. Designed for efficient field operation, it features a standard forced-centering base and smooth leveling controls for accurate instrument positioning. Key Features • Bright 650 nm laser dot for quick centering • 8-minute circular vial for leveling accuracy • Three-screw leveling with center line reference • Standard three-prong forced centering • Powered by 3V CR2 lithium battery (included) • Durable design for surveying and construction use, not suitable for Trimble S Series Total Stations