Home > Equipment Equipment Ground Surveys Ltd uses exclusively Trimble surveying equipment including reflectorless and robotic total stations together with Global Positioning System (GPS) for on site data capture. These precision instruments enable our survey teams to work efficiently with a high degree of accuracy and detail. Reflectorless measuring gives us the ability to position inaccessible or sensitive objects. This is most useful in determining elevation heights and building positions. We have a policy of upgrading our survey equipment to the latest specifications.