We are offering here the Surveying service of various types that can be availed by the various industries. The Theodolite Service And Calibration Services are primarily digital surveying tools, designed to deliver a high level of accuracy in terms of vertical and horizontal angle readings. These instruments are also extremely useful for line control and establishing plumb. A theodolite is a precision optical instrument for measuring vertical and horizontal angles between visible points in a given plane. An auto level is a leveling instrument and used by contractors, builders, land surveying professionals for surveying. The Surveying service is made for easy use.