Fire detector comprising a MOS gas sensor and a photoelectric detector
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United States of America Patent
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Jan 30, 2018
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N/A
app pub date -
Nov 10, 2011
filing date -
Nov 10, 2011
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Abstract
A dual sensor fire detector includes a smoke sensor and a gas sensor. A source of radiant energy emits a primary beam that is formed into first and second beams. One beam is directed into a smoke sensing chamber. The other is directed to the gas sensor. Outputs from the smoke sensor and the gas sensor are combined to make a fire determination.
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