AllTerra Central (formerly Martin Instrument & WDS) is the authorized Premier Trimble dealer for Survey, Construction, Mappin ... g/GIS and Marine equipment in Texas and Oklahoma. We have 7 offices and offer the full line of Trimble products, along with SECO accessories, Nikon, Spectra Precision and LTI products. Serving customers since 1984, we offer both sales, rentals, support and training of all devices. We also offer field supplies and can deliver them right to your job site. In the new technology arena, we offer DelAir’s new UX11 UAV and Microdrones UAVs now capable of detecting methane, doing aerial mapping and inspection and performing thermal mapping. And we have affordable & fast LIDAR tank inspection with the Trimble TX8 3D laser scanner and Realworks software. Finally, we offer used Trimble survey and mapping instruments such as GPS systems, robotic total stations, scanners and more, all on our website allterracentral.com. All backed by a Service department with one of the fastest turnarounds in the nation. read more