Theodolite (Describing a theodolite as a transit may refer to the ability to turn the telescope a full rotation on the horizontal axis, which provides a convenient way to reverse the direction of view, or to sight the same object with the yoke in opposite directions, which causes some instrumental errors to cancel.[1])
Altaz telescopes with graduated eyepieces (also for satellite transits)
The accuracy reaches from 0.2" (theodolites, small astrolabes) to 0.01" (modern meridian circles, Danjon). Early instruments (like the mural quadrants of Tycho Brahe) had no telescope and were limited to about 0.01°.
^Brinker, Russell C. (1987), "Surveying Field Notes, Data Collectors", The Surveying Handbook, Boston, MA: Springer US, pp. 1–39, doi:10.1007/978-1-4757-1188-2_1, ISBN 978-1-4757-1190-5, retrieved 2022-09-24