Nearly every electric ceramics kiln comes equipped with a kiln sitter. Before your first firing in an electric kiln, it is essential you become familiar with the kiln sitter; most electric kilns will not operate unless the kiln sitter is properly armed.
This is a view of the exterior panel of the kiln sitter. Note that it has a hinged plate that swings upward and a latch that can catch and hold the plate. When arming the kiln sitter, you will lift the plate up and hold it in place flush to the panel.