According to our records, this business is located at P.O. BOX 61 in Mattoon (in Coles County), Illinois 61938, the location GPS coordinates are: 39.4830897 (latitude), -88.3728255 (longitude). Monitor Sign Co is categorized under Name Plates: Except Engraved, Etched, Etc.: Metal (SIC code 3993). Known organization president is David Cornell. You can contact the company by phone at (217) 234-2412.