Theodolites

Theodolites are optical survey instruments used to measure horizontal and vertical angles in various surveying and engineering applications. They consist of a telescope mounted on a rotating base and a vertical spindle, allowing for accurate measurements of angles both horizontally and vertically. Theodolites are commonly used in land surveying, construction layout, and mapping to determine precise angles for mapping and positioning purposes. They are also often utilized in road and infrastructure projects, tunnel construction, and architectural projects.