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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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    • Sensirion supports Swiss schools with free CO2 monitoring sensors

    Sensirion supports Swiss schools with free CO2 monitoring sensors

    11/26/2020 | Press Release

    SCD4x CO2 Monitor

    Sensirion, the Swiss high-tech company and global expert in environmental sensing, is delighted to announce that its internally developed CO2 monitoring system will be installed for free in 2,500 classrooms in the canton of Zurich. The system will reduce the viral transmission risk by supporting regular, effective ventilation.

    The COVID-19 pandemic has created huge demand for measuring air quality and viral loads in indoor spaces. Increasing numbers of studies indicate that CO2 (carbon dioxide) can be a good indicator for monitoring air quality in enclosed spaces. Proper ventilation is becoming more and more important. This is because when there are many people in a room, a huge amount of air is exhaled – an adult exhales an estimated eight liters per minute. This exhaled air contains CO2 and aerosols. The aerosols convey viruses, and are therefore a medium for transmission. The aerosol concentration in a room rises in parallel with the CO2 concentration. In classrooms, the CO2 concentration should not exceed 1,000 ppm (ppm stands for “parts per million” – a measure of concentration). By way of comparison, fresh air outdoors has a CO2 concentration of 400 ppm. Too much CO2 in a room and it becomes stifling, impairing concentration and increasing the risk of catching a virus.

    According to various media, there is currently a shortage of CO2 monitoring systems. As a world leading manufacturer in environmental sensing, Sensirion is now supporting Swiss schools. Schools are at a particularly high risk in the ongoing coronavirus pandemic. Pupils sit in classrooms for hours, leaving them exposed to potentially infectious aerosols. In winter, this is particularly problematic as classrooms cannot be continually ventilated; the pupils would have to keep on their winter coats all day or catch cold. A CO2 monitor can make the school day easier by indicating the right time for opening windows to ventilate the room. This time can vary according to the size of the room, the number of people in it and its natural ventilation rate. A CO2 sensor allows ventilation to be carried out as needed. This is where Sensirion’s monitor comes in, based on the new SCD4x sensor.
     
    "In closed rooms, like classrooms without much air circulation, you are at risk of catching a virus. This can happen even several minutes after a pupil has left the room. This is where we want bring in our sensors to help teachers ventilate effectively and regularly, thereby reducing the risk of infection and increasing classroom well-being and safety," says Pascal Gerner, Director Product Management at Sensirion. The sensor manufacturer is therefore donating reliable, precise CO2 monitoring sensors or CO2 monitors to 2,500 classrooms in the canton of Zurich.

    Sensirion’s CO2 monitor for monitoring air quality has a highly accurate and reliable CO2 sensor built in, as well as LED lights that indicate the air quality using a traffic light system. The colors red, yellow and green indicate when it is time to ventilate the room. The handy gadget also has a USB port, allowing it to be connected to any hardware that has a USB connector, whether it is a USB charger, a computer or a car. The sensor manufacturer also offers an iOS and Android app to record and display measurement data in real time.

    "Concepts for smart ventilation in classrooms are vital, especially now that the weather is getting steadily colder. The Swiss media have also stated that there is a shortage of CO2 monitoring systems at the moment. That is why Sensirion, the innovative Swiss sensor expert, has done everything in its power to rapidly develop a CO2 monitor that measures air quality, to help reduce COVID-19 infections in this unprecedented situation," says Marc von Waldkirch, CEO of Sensirion. "Promoting up-and-coming talent is an essential part of our company culture, so Swiss education holds a special place for us."

    For more information about this topic, visit: www.sensirion.com/co2-virus-infection

    For more information about Sensirion, visit: www.sensirion.com

     

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