A digital theodolite with 5-arc-second accuracy and dual display for horizontal and vertical angle measurement — Multi Trade Combines stocks surveying instruments at AT Road, Guwahati, price on request.
A digital theodolite is an optical-electronic instrument that measures angles in both the horizontal and vertical planes to a stated accuracy. Its telescope sights to a target (survey prism, ranging rod or reference mark); the electronic circle-reading system displays the horizontal angle (bearing) and vertical angle (zenith or elevation angle) on a digital LCD screen — typically on both sides of the instrument (dual display) so the observer can read without walking around the tribrach.
Modern digital theodolites at the 5-arc-second (5") accuracy class are the workhorses of everyday engineering survey work: road alignment, building layout, pipeline routing and site control surveying. They are lighter, faster and more reliable than older optical-reading instruments and pair directly with data collectors for digital fieldbook keeping.
Multi Trade Combines stocks digital theodolites at our AT Road, Guwahati counter, supplied to PWD engineers, private surveyors and construction contractors across Northeast India.
| Category | Surveying Instruments |
|---|---|
| Key specs | 5" accuracy, dual display |
| Accuracy | 5 arc seconds (5") — standard engineering survey grade |
| Display | Dual LCD — both sides of the instrument |
| Circle type | Electronic absolute encoding — no reference reset needed |
| Power | Rechargeable battery — typically 8–12 hours field use |
| Availability | In stock — price on request |
A complete survey instrument kit for site engineers includes:
A digital theodolite measures horizontal and vertical angles with precision — it is the fundamental instrument for setting out (marking the position and alignment of structures on the ground), measuring existing angles between survey stations, checking the verticality of columns and structures, and laying out grid lines on construction sites. It is used by survey engineers for road alignment, bridge setting out, building layout, contour mapping and traverse surveys. The digital (electronic) display reads angles directly to 1" or 5" accuracy — far faster and less prone to reading error than older optical-reading theodolites.
A digital theodolite measures angles only — horizontal and vertical. To measure distance, the surveyor needs a separate electronic distance measurement (EDM) unit or a steel tape. A total station integrates angle measurement, EDM distance measurement and a data logger in a single instrument — it can measure a point's position (angle + distance) in a single observation and store the data electronically. Total stations are faster for large surveys. For smaller contracts where angle setting-out and level checking are the primary tasks — road alignment setting out, building layout, column plumb checking — a digital theodolite paired with a dumpy level is more economical and adequate.