In enclosed indoor spaces, human activity continuously releases carbon dioxide. Without adequate ventilation, carbon dioxide accumulates, affecting air quality. This problem is particularly acute as modern buildings increasingly strive for airtightness.

    When carbon dioxide concentrations exceed certain limits, they can pose a threat to human health and work efficiency. Research shows that concentrations below 2% have minimal impact on the human body. However, exceeding this threshold can damage the respiratory system and even cause poisoning. High concentrations can even lead to hypoxia and suffocation.

    To address this issue, smart ventilation systems equipped with carbon dioxide sensors are widely used in commercial and residential settings. These systems can adjust indoor ventilation efficiently and energy-efficiently based on real-time air quality. Furthermore, these sensors are often integrated into devices such as air purifiers, smart thermostats, and fresh air air conditioners, enabling autonomous decision-making without human intervention.

    Among various carbon dioxide detection technologies, NDIR (non-dispersive infrared) absorption has become the mainstream choice due to its superior performance. This method utilizes carbon dioxide's characteristic absorption in the 4.3μm infrared band, where common gases such as oxygen, nitrogen, and water vapor have little interference, ensuring high selectivity and accuracy.

TX-Z19D Carbon Dioxide Gas Sensor

TX-Z19E Carbon Dioxide Gas Sensor

    Tensensor's independently developed TX-Z19 series carbon dioxide sensors are designed based on the NDIR principle. These sensors offer high selectivity, no oxygen dependency, and a long service life. They also feature built-in temperature compensation and support serial and PWM outputs, enabling flexible integration into various applications, including fresh air systems, air purification systems, smart homes, and HVAC systems.

    As one of Tensensor's popular infrared carbon dioxide sensors, the TX-Z19 is suitable for a variety of residential, commercial, and industrial applications. If you have any questions, please feel free to contact us for detailed information and professional support.