The present disclosure provides a sensor system including one or more sensors having a first container fluidly coupled to a second container, the second container being configured to receive a conductive media from the first container. A first movable element is slidingly engaged with the first container to cause the second container to receive the conductive media from the first container. A first electrode is positioned in the first cavity and electrically coupled to the conductive media. In some examples, a second electrode is electrically coupled to the first electrode and the conductive media. The sensor deposits the conductive media on a working electrode to form an electrochemical cell and obtain one or more material properties of the working electrode. In some examples, the sensor system includes an array of sensors which deposit the conducive media in multiple locations on a working electrode to generate a material property map.