altMicrobridge Technologies Corp. (Sunnyvale, CA) has introduced Nano-Air-Flow differential pressure sensors for medial respiratory applications. The devices incorporate a thermal anemometer element and CMOS analog conditioning circuitry with a microflow channel that allows accurate sensing of low differential pressures over a wide dynamic range. They are suited for use in medical respiration applications where it is necessary to measure full-scale differential pressure of approximately 15" H2O, with a greater than 104 dynamic range and extreme resistance to contamination.

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