Topcon introduces new GT total station with speed, accuracy ideal for tunneling, monitoring applications

CAPPELLE A/D IJSSEL, the Netherlands – October 16, 2018 – Topcon Positioning Group announces an addition to the GT series of total stations for Europe — the GT-503M — designed for professionals seeking the versatility of a motorized solution and the benefits of a single-operator robotic system in a dual-operator system.

“Topcon is dedicated to providing high-accuracy solutions for a wide variety of applications to improve workflows and the GT-503M is an example of this commitment. With the autolock feature, which increases productivity for two-operator use, it is also an ideal solution for specialist applications, such as monitoring and tunnel surveying,” said Ian Stilgoe, vice of president of GeoPositioning, Europe. “We are excited to provide this motorized total station solution to the European market.”

The system offers direct connectivity to MAGNET® Enterprise global web services for field-to-office collaboration, and can be upgraded to autotracking when the operator is ready to advance further into robotic applications. The GT-503M features UltraSonic Direct Drive motors designed to provide smooth, fast and accurate prism auto-collimation capabilities and a quick and powerful turning speed. It has the ability to find a prism and lock within the field of view simplifying the steps for the operator — with no need to focus the instrument to find the prism.

The waterproof total station includes TSshield technology for security and firmware updates.

For more information on the GT series, visit


About Topcon Positioning Group
Topcon Positioning Group is headquartered in Livermore, California, U.S. ( Its European head office is in Capelle a/d IJssel, the Netherlands. Topcon Positioning Group designs, manufactures and distributes precision measurement and workflow solutions for the global construction, geospatial and agriculture markets. Its brands include Topcon, Sokkia, Tierra, Digi-Star, RDS Technology, and NORAC. Topcon Corporation (, founded in 1932, is traded on the Tokyo Stock Exchange (7732). 

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