5/1 BA is a traditional analog door panel. The product is easy to install in places that other products may be difficult (for example, narrow, metal fence-post). The panel is made of materials that repel corrosion - aluminum, galvanized steel. BA 05.01 is the one behind the fire button to call the product can be put on the label to call. The product is designed for surface mounting, however, if the product installed in the wall, it is necessary to purchase the BAR frame.