The S-52X is part of the Triad high-precision GPS survey instrument system which consists of two other components, the T-53X survey robot and the I-53X control unit. The S-52X contains a 12-channel GPS receiver, antenna, rover unit and cable, mount, data logger, and cables. This system is used by surveyors to quickly and accurately plot points and take measurements at a worksite. The S-52X is a small, portable device that is incredibly accurate and reliable. It allows surveyors to plot very small points with a high degree of accuracy. It can also be used for aerial surveying, making it a powerful tool for a variety of applications.