Light-responsive enclosure alarm

Details Light-responsive enclosure alarm Light-responsive enclosure alarm

G - Physics

08

B

G08B 13/00 (2006.01) G08B 13/14 (2006.01)

Patent

CA 2098340

ABSTRACT OF THE DISCLOSURE The device determines whether a darkened enclosure has been opened by an unauthorized user. The device does not require that it first be turned on in light and when placed into a darkened enclosure, has the capacity of informing the authorized user of a possible unauthorized opening. After an unauthorized opening, and audible alarm would be triggered for a predetermined period of time. Subsequent to the cessation of this audible alarm, the authorized user by viewing the status of a light emitting diode after depressing an on/off switch, can determine whether an unauthorized user has gained access to the enclosure.

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