This report is to present the design and development of a liquid level sensing system based on SCADA system. It is a synthesis of the actions carried out for the construction of the liquid level measuring system. It is structured in five chapters that explain the steps for the realisation of the project. Knowing the content level of liquid in tanks is very important in industry, although accuracy demands vary according to business requirements. Therefore, it becomes extremely important to monitor and control the level of tanks, vessels, reservoirs, etc. In this project a liquid tank is analysed with a pressure sensor, and is monitored with the aid of a PLC and a SCADA software.