Recoiler sensor

A merchandise security device for securing items of merchandise from theft is provided. The merchandise security device may include a printed circuit board and a base containing the printed circuit board. The security device may include a sensor electrically connected to the printed circuit board and configured to engage a support surface for detecting unauthorized removal of the base from the support surface. The security device may also include a tether configured to be coupled to one or more items of merchandise, and a spool rotatably disposed within the base for winding and unwinding the tether, wherein the tether is configured to be extended and retracted relative to the base. The printed circuit board is coupled to the spool such that the printed circuit board is configured to rotate relative to the base when the tether is extended and retracted, and the sensor is configured to remain stationary when the tether is extended and retracted.