Questions? Call...800.591.8907

16 Years Serving Customers Like You. Buy With Confidence.

Engineering Supplies, Blueprint Storage, Measuring Tools, Surveying Equipment & More!


A Theodolite is a instrument for measuring both horizontal and vertical angles, as used in triangulation networks, and geo-location work. It is a tool used in the land surveying and engineering industry, but theodolites have been adapted for other specialized purposes as well. Other specialized purposes make Theodolites ideal for shop and factory floor layout of tools and fixtures. They also work well for layout for the construction of concrete slabs, swimming pools, golf courses, landscaping, and road design.

The horizontal accuracy of Theodolites depends on "seconds". A 2-second theodolite is more accurate than a 5 or 9-second theodolite. If you think about the horizontal circle that a theodolite rotates around, the circle is divided into 360 degrees. Each degree is divided into 60 minutes, and each minute divided into 60 seconds. Think "Degrees / Minutes / Seconds". The horizontal angle is the measure of inaccuracy (hence accuracy) that a theodolite can horizontally measure or locate within. If a theodolites accuracy rating is 2 seconds (written 2") then its only going to lose 2 seconds of horizontal measurement in a given distance. Generally speaking, a 9 second theodolite is for construction sites where you're working relatively up close, say within 200 feet from the instrument. A 2 second you would work 2,000 feet away and still work with some level of accruacy. Most building contractors, whether residential or commercial, can use a 9 second theodolite without experiencing problems due to accuracy. At this distance, more errors are in the form of human errors, such as not leveling the instrument properly or taking a quick reading which lends itself to human error.

Factory-Authorized Dealer For The Most Trusted Brands In The Industry

Bosch Tools and Measuring Equipment SitePro Surveying Supplies Aervoe Inverted Spray Paint Advanced Organizing Systems Blueprint Storage Boxes and Systems RotaTrim Rotary Paper Trimmers Neolt Large Paper Trimmers Schonstedt Underground Location Equipment Elan Field Books and Engineering Log Books Dutch Hill Surveyors Tripods Dunham and Morrow Magnetic Ferro Locators Dahle Paper Trimmers and Shredders Alvin Drafting and Art Products Safco Office Furniture and Products AGL Laser Levels and Pipe Lasers Seco Land Surveying Equipment and Products Agatec Laser Levels Topcon Rotary Laser Levels and Detectors DuraWheel Distance Measuring Wheels Ulrich Plan File Cabinets Johnson Level Tools and Equipment Alumicolor Scales and T Squares CST Berger Surveying Equipment Crain Grade Rods Premium Brand Blueprint Stands, Clamps, and Racks Calculated Industries Construction Calculators and Tools Dietzgen Paper and Media Keson Measuring Wheels and Measuring Tapes LaserLine Cut and Fill Grade Rods Doc Box Permit Holders and Boxes Artograph Tracing Projectors and Products Subsurface Instruments Underground Utility Locators Mayline Office Products, Cabinets, and Blueprint Stands Futtura Surveyors Equipment and Instruments
View All Brands

Join Today and we'll send you a coupon to use on your first order!

Please Wait... processing