Topcon Type Tribrach with Optical Plummet AJ13(D1)
Optical Plummet Twist Focus Tribrach - Yellow for GPS base stations, theodolites and total stations.
High-quality tribrach features an optical plummet and 3X magnification and a twist focus.
Its reticule is composed of two small concentric circles.
With a sighting distance of 0.3 m to 15 m, accuracy of 0.5 mm per 1.5 m.
A locking forced-centering knob, a 5/8 x 11 base and an 8-minute circular vial.