The Doorking 1200-081 Transformer Box provides four (4) 115 VAC convenience outlets for access control system accessory transformers. There is ample room in the transformer box for installation of other access control devices that may be required for the application – an RF receiver for example. The transformer box is designed for installation into 1200-085, 1200-086 mounting post, 1200-160, 1200-170, 1200-175 mounting kiosk, or it can be used in a stand-alone application (flush mount only). When used in a stand-alone application, a flush mount galvanized steel mounting plate (user supplied) is recommended.