Banner is designed to display two different text or graphic messages. Depending on the displayed text, banner can be used in warning, signaling or communicatory systems (i.e. NO ENTRY, ENTRY). Content and color of the text message on the banner is chosen by user at the ordering stage. Banner is designed to be used in in methane explosion hazardless chambers and in class A coal dust explosion hazard chambers. Banner’s housing ensures IP 54 protection degree. TOP optic banners are made-up in following versions: Type TOP 2.1 banner adopted to show signals one-sidely and TOP 2.2 adopted to show signals both-sidely.