Specification Brand : Von Duprin Label : Von Duprin Manufacturer : Von Duprin Model : 900-4RL-FA PartNumber : 900-4RL-FA ProductGroup : CE ProductTypeName : SECURITY_ELECTRONICS Publisher : Von Duprin SmallImage_Height : 75 SmallImage_URL : https://m.media-amazon.com/images/I/21FZGoGoUzL._SL75_.jpg SmallImage_Width : 75 Studio : Von Duprin Title : Von Duprin 900-4RL-FA 4 Relay Logic Board w/ Fire Alarm Relay