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    • Home
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        • Digital Humidity Sensor SHT4x (RH/T)
        • Digital Humidity Sensor SHT3x (RH/T)
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      • CO2 Sensor STC31

        The most efficient way to measure high CO2 concentrations

        The STC31 is a chip-sized gas concentration sensor for high range, accurate CO2 measurements designed for high-volume production. The sensor is based on a revolutionized thermal conductivity measurement principle, which results in superior repeatability and long-term stability. This makes the STC31 the perfect choice for applications where reliability is key.

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      • Product Highlight

        Evaluation kit for the single-use liquid flow sensor LD20-2600B

        The LD20-2600B single-use liquid flow sensor for fast, precise and reliable measurements of the lowest flow rates in biomedical applications was successfully launched three years ago. The evaluation kit for this OEM liquid flow sensor can now also be purchased online via Sensirion's distribution network.

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        Experts for Smart Sensor Solutions

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    • Mass Flow Meter SFM3400

      Proximal Flow Sensor for Neonatal and Pediatric OEM Applications

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    • Massenflussmesser SFM3400

    Mass Flow Meter SFM3400

    Proximal Flow Sensor for Neonatal and Pediatric OEM Applications

    The SFM3400 flow sensor is a proximal flow sensor for neonatal and pediatric applications in respiratory devices such as ventilation or anesthesia. The sensor is available as both a single-use version (SFM3400-D) and a reusable version (SFM3400-AW). The reusable solution is autoclavable and washable.

    The SFM3400 flow sensor features outstanding measurement accuracy and a short signal processing time as well as high robustness. The digital flow sensor measures bidirectional flow rates of up to 33 slm and is fully calibrated for air, N2 and O2 gases. The special design of the flow channel results in a low dead space volume of less than 1 ml. The sensor features standard medical cones for pneumatic connection to the respiratory cycle and has a mechanical interface for a simple and user-friendly electrical connection. Thanks to its performance characteristics, the SFM3400 mass flow meters are ideally suited for proximal flow measurements in neonatal and pediatric OEM applications, ventilation in hospitals, emergency situations and home care applications.

    Like all sensors of the successful SFM3xx platform, the SFM3400 is based on the innovative CMOSens® Technology, which combines the sensor element and processing electronics on a single, small CMOS microchip. The CMOSens® mass flow sensors offer robust and interference-free measurements and allow utilization of the very fast and precise sensor signal.


    Features

    • For neonatal and pediatric applications
    • Reusable (autoclavable / washable) and single-use versions
    • Flow rates: ±33 slm (bidirectional)
    • Fully calibrated, no recalibration
    • Very fast update time (0.5 ms)
    • Small dead space: < 1 ml
    • Best-in-class accuracy
    • Robust
    • Highest sensitivity
    • Low dependency on different inlet conditions
    • Medical cones for pneumatic connection to standard breathing circuits
    • Mechanical interface for electrical reconnection

    Applications

    • OEM Applications
    • Proximal flow measurement (neonatal and pediatric applications)
    • Ventilation
    • Anesthesia
    • Respiratory measurements
    • Metabolic measurements

     

    More information about applications in the medical market.

     

     


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    Download Center

    Here you can find all documents of Sensirion's mass flow meters for download.


    Proximal Flow Sensors for Adult Applications

    Sensirion’s product range includes proximal flow sensors for respiratory applications for adults. The sensors are available as single-use and as reusable version too. Learn more about the SFM3300-D mass flow meter and the SFM3300-AW mass flow meter.

    Sensirion Mass Flow Meters SFM3300 3200 Kombi

    Related Products

    Sensirion Mass Flow Meters SFM3000

    Mass Flow Meter SFM3000

    The digital SFM3000 mass flow meter excels in accuracy, fast response time and low pressure drop, making it highly suitable for cost-sensitive flow measurements in medical and industrial applications.

    Sensirion Mass Flow Meters SFM3100

    Mass Flow Meter SFM3100

    The analog SFM3100 mass flow meter as a compact design and can be easily integrated into existing systems. An integrated temperature sensor eliminates the need to install an additional sensor.

    Sensirion Mass Flow Meters SFM3200

    Mass Flow Meter SFM3200

    The fully calibrated SFM3200 is suitable for inspiratory flow measurement. In addition, an autoclavable / washable version (SFM3200-AW) for expiratory flow measurements is available.

    Sensirion Mass Flow Meters SFM3300 3200 Kombi

    Mass Flow Meter SFM3300

    The SFM3300 proximal flow sensor features excellent measuring accuracy, robustness and a short signal processing time. The fully calibrated sensor measures bidirectional flow ranges of up to 250 slm.

    Technical Documents

    • Datasheet SFM3400
    • Product Flyer Proximal Flow Sensors
    • RoHS, REACH and Hal-Free Declaration GFM

    Press

    • Single-Use Flow Sensor for Proximal Measurements in Ventilation
    • The right mass flow meter for every medical device - Sensirion adds three new products to the SFM3xxx platform

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    • Medical

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