Topcon’s Tribrach with Optical Plummet offers precise plumbing for a range of equipment including theodolites, total stations, reflector systems, and more. Plates are connected with accurately machined leveling screws, a locking mechanism, and an optical plummet. A standard-sized thread bolt hole of 5/8 by 11 inches keeps your equipment secured to the tripod. Optical plummet with triple magnification and a 5° field of view allows for perfect positioning. A circular vial of 8'/2mm is included. Topcon’s tribrach is compatible with all Topcon’s surveying instruments.