| CPC G08B 13/2434 (2013.01) [G08B 7/06 (2013.01); G08B 13/2431 (2013.01)] | 17 Claims |

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1. An article surveillance tag comprising:
a housing;
a switch including a first contact coupled with the housing and a second contact configured to be coupled with an article, the second contact is movable relative to the first contact; and
a processing circuit configured to detect an electrical connection when the first contact and the second contact touch, and further configured to detect an electrical disconnection between the first contact and the second contact when the first contact and the second contact do not touch, and trigger an alarm upon detecting the electrical disconnection.
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