Profile: Geo Shack, LLC specializes in surveying instruments. We deal with survey instruments, construction lasers, construction positioning systems, machine control, and construction software. We provide surveying, leveling, alignment, positioning, layout and grade control. Our survey instruments include optical total stations, theodolites, levels and transits, GR-3 receivers, data collectors & field computers, GPS systems, GPS base stations, & magnetic locators. We also deal with construction lasers, laser levels, sloping lasers, pipe lasers, pointing lasers, receivers and measuring systems, 3-D machine control systems, motor grader cross slope systems, paver systems & weighing systems.