Corrosion in itself is a natural process that converts refined metals into chemically stable forms. After corrosion the metals start to lose their fine state and undergo the stage of gradual destruction. Metals are basic components of building in modern era and are available everywhere as a part of structure. We must know what is corroding and at what rate it is corroding. The device that is used for keeping log of corrosion in industrial or commercial places is the corrosion data logger.