| 摘要 |
A device (5) designed to sound an alarm (20) when it is removed from an electrical outlet. The device is plugged into an electrical outlet using a set of prongs (50, 55) like those used in the electrical plugs of typical household appliances. When the device is in its activated state, its being removed from the outlet will cause an alarm (20) to sound, thereby alerting persons in the area. The apparatus is battery-powered (30), and does not form a circuit with the outlet into which it is inserted.
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