This project is to design of a simple Graphical User Interface (GUI) and server and client system for the Networked Aquatic Microbial Observing System (NAMOS). The network has ten static buoy nodes and one mobile robotic boat to measure the chemical, physical and biological phenomena. The goal of the network is to gain high-resolution information of plankton assemblages in aquatic environment and hydrographical requirements. This network will contribute to enable (1) real-time observation in aquatic ecosystems and (2) sensor actuated sampling for biological analysis. The objective of the GUI and server and client system for NAMOS is to enable a user to select a buoy, connect to it, get data of a specific time period, and plot these data without knowing the command line.