A merchandise security device is provided. The merchandise security device may include a housing configured to receive at least one item of merchandise therein. The housing includes a flexible circuit for defining a sense loop. The security device also includes a closure member configured to close an opening defined in the housing and a lock mechanism configured to secure the closure member. The security device further includes monitoring electronics in communication with the flexible circuit and configured to detect an interruption in the sense loop.

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This work is licensed under a Creative Commons Attribution 4.0 License.