Abstract: An alarm system for rigid enclosures such as cabinets, closets, draws, luggage and the like includes an alarm electrically coupled to a direct current source, an on-off deactivating switch, and a pressure responsive switch to provide positive and reliable actuation of the alarm, indicating unauthorized opening of the enclosure. The alarm, current source and deactivating switch may be remote from the enclosure to provide a central security station.

Abstract: An audible alarm system for an electrical outlet including a housing dimensioned to prevent access to the socket of an electrical outlet upon insertion therein, means coupled to the housing for insertion into a socket, alarm means in the housing for providing an audible alarm, and pressure responsive switch means for normally completing a circuit to the alarm means to activate the same. The pressure responsive switch means having an outwardly extending member for engagement and depression by the electrical outlet upon insertion into a socket to open the circuit to the alarm means and deactivate the same; release of the outwardly extending member during withdrawal of the housing from the socket causing the pressure responsive switch means to close the circuit to the alarm means to provide an audible alarm.