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    Sensirion AG Switzerland
    • Home
    • Environmental Sensors
      • Humidity Sensors
        • Digital Humidity Sensor SHT4x (RH/T)
        • Digital Humidity Sensor SHT3x (RH/T)
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      • Formaldehyde Sensor SFA30

        Formaldehyde Sensing Made Easy

        The SFA30 is Sensirion’s new digital formaldehyde sensor designed for easy integration into air purifiers, demand-controlled ventilation systems, or indoor air quality monitors. Based on Sensirion’s electrochemical technology, the SFA30 offers excellent formaldehyde sensing performance with a uniquely low cross-sensitivity to other VOCs. The sensor module’s on-board SHT sensor provides accurate humidity and temperature readings and enables a fully temperature/humidity compensated and factory calibrated formaldehyde concentration output in ppb.

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    • Flow Sensors
      • Liquid Flow Meters
        • Lx – Compact Liquid Flow Meters
          • Liquid Flow Meter LG16
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        • SLx – Standalone Liquid Flow Meters
          • Liquid Flow Meter SLI
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          • Liquid Flow Meter SLQ-QT105
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      • Evaluation Kit SEK-Flow Sensing
      • 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.

        Read more

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        Experts for Smart Sensor Solutions

        Sensirion's sensors are used in a wide range of markets and different applications. Our high-quality environmental and flow sensors and sensor solutions improve energy efficiency and sustainability. They increase our safety, support our health and raise the quality of life. 

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        Sensirion Worldmap

        Sensirion Worldwide

        Founded in 1998 Sensirion has become the leading manufacturer of flow and environmental sensors solutions. The company now employs people in various countries such as the USA, South Korea, Japan, China, Taiwan, and Germany. The headquarters in Switzerland is responsible for research, development, and production. 

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      • Most Popular Employer in Switzerland 2019

        Learn more: www.sensirion.com/GPTW

         

        Top Career Openings:

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    • Home
    • Flow Sensors
    • Mass Flow Meters for Gases
    • Mass Flow Meter SFM4300

    Mass Flow Meter SFM4300

    Mass Flow Meter for Gas Mixing Applications

    The mass flow meter SFM4300 features improved sensitivity and precision, even for low flow rates.

    The small, compact sensor is calibrated for air, O2 and N2O gases and – in contrast to its predecessor, the mass flow meter SFM4100 – it can also be used to monitor gas mixing. With a zero-point accuracy of 0.005 slm for a total range of up to 20 slm, the SFM4300 enables precise adjustment of the concentration in a wide selection of mixtures. The sensor unit has an I²C interface and produces a fully calibrated and temperature-compensated output signal. The mass flow sensor can be used for both medical and industrial gas mixing, fuel cells and for other OEM applications.

    Flow Sensors for Gas Mixing in Respiratory Devices

    In addition to inspiratory, expiratory and proximal flow measurement, Sensirion offers sensor solutions for gas mixing applications. These sensors are mainly used in anesthesia machines and are usually integrated into the overall machine. If we want to guarantee the patient’s safety while taking accurate, reproducible readings, we need the flow sensors in the machine to be stable and reliable – throughout the machine’s service life.  Therefore, the Sensirion SFM4000 series is the ideal solution. It is is devided in two sensors: SFM4300 and SFM4200. The SFM4300 sensor can operate at pressures of up to 6 bar, store multiple gas calibrations and even perform self-testing while in use. Where safety and reliability are concerned, the SFM4300 is the preferred choice. The SFM4200 sensor is highly resistant to pressure, it guarantees reliable measurements at surges of up to 8 bar. Its signal processing time is 0.5 ms, making it incredibly fast and accurate. Customers also benefit from an expanded measurement range of up to 160 liters per Minute.


    Features

    • Compact
    • High precision and sensitivity (esp. for low flow rates)
    • Flow range: 0 to 20 slm
    • Very pressure-resistant (up to 6 bar)
    • Multigas option: O2, air, N2O (other calibrations on request)
    • Fully calibrated and temperature-compensated
    • Digital I²C interface
    • Mechanical connections: downmount, Legris, O-rings

    Applications

    • Medical gas mixing: anesthesia, vaporizers
    • Industrial gas mixing: welding applications
    • Fuel cells
    • OEM applications

    Download Image

    Download Center

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


    Related Products

    Sensirion Mass Flow Meters SFM4100

    Mass Flow Meter SFM4100

    The SFM4100 flow meter provides excellent long-term stability and freedom from drift. It is the first choice for devices with a high usage rate and at the same time long service intervals.

    Mass Flow Meter SFM4200

    The SFM4200 digital mass flow meter is pressure resistant and measures pressure surges of up to 8 bar. The SFM4200 has a signal processing time of 0.5 ms and a measurement range of up to 160 slm.

    Technical Documents

    • Application Guide SHTC1

    Markets

    • Medical
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