Based on the GDF23 and GDF24 precision tribrachs produced by WILD until the end of the 1980s for deformation measurements on dams, pumped storage plants and power stations, these two models have been reissued in collaboration with GeoDesy.
The main dimensions of both tribrachs are identical to the old models and are therefore fully compatible. With the screw-in centering bolt and the lateral measuring scales, you can now once again mount your current total station on historical measuring pillars or forced centering with repeatable accuracy.