Security device having a releasable electronic connection

A security device that is attachable to a surface of display items. The security device includes a housing comprising a sensor body having a flat face plate, and a jack housing, and a dome shaped cover which is attachable to the flat face plate. Jack housing is attachable or molded to an inside face of the flat face and extends out from that inside face with an opening in the dome shaped cover forming an opening for the jack. Disposed on an outside surface of this flat face plate is an adhesive opposite the open port connection of the jack. The adhesive functions as a fastener, fastening the security device to the display device. To determine whether the security device has been detached from the display device, there is a switch disposed substantially in the housing. The switch is in contact with the surface of the item for display, so that when said housing is detached from the item for display, the switch triggers a signal, indicating that the device has been removed from the item for display. Because the port connection is disposed opposite the adhesive flat face, a user can easily pick up an item being displayed while it is still electronically connected to a central station.