Alarm device

Details Alarm device Alarm device

G - Physics

08

B

340/128

G08B 13/08 (2006.01)

Patent

CA 1141840

ALARM DEVICE Abstract of the Disclosure An alarm device which includes a housing, batteries in the housing, conductors and a light source and audio signal in parallel to one another and connected to the batteries and switch means between the light source and the audio signal, in series therewith, and normally opened, yet adapted to be closed by movement of the switch to cause, optionally, a light or an audio signal and, alternatively, an attachment for the housing to provide an alternative circuit with a switch in it which is activated by heat, or by closing to a normal position upon release under predetermined conditions to override the signal and to cause an audio signal to warn a person that an intruder has entered a room or that the heat within a given location exceeds a certain predetermined amount.

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