In the current context of coordinated industrial upgrading and ecological protection, the accurate monitoring of sulfur dioxide, as one of the major air pollutants, has become a core element for compliant operation of industrial production in sectors such as steel, power, and chemicals, as well as for environmental law enforcement and environmental quality monitoring. Therefore, Tensensor's MQ-E3-SO₂ gas sensor constant-potential electrolytic sulfur dioxide sensor, with its core advantages of high precision, high stability, and strong anti-interference capabilities, has become the preferred solution for sulfur dioxide detection in the industrial and environmental protection fields, building a solid line of defense for ecological protection and industrial production through accurate monitoring.

MQ-E3-SO2 Electrochemical SO2 Sensor

    The MQ-E3-SO₂ sensor utilizes constant-potential electrolysis technology, leveraging the redox reaction between sulfur dioxide and oxygen between electrodes to generate a current proportional to the concentration, thus achieving precise determination of sulfur dioxide concentration. Compared to traditional detection equipment, this sensor boasts multiple advantages, including low power consumption, a wide linear range, and excellent repeatability. It fundamentally solves the pain points of low detection accuracy, large data fluctuations, and high energy consumption in complex industrial environments, making it suitable for diverse applications such as continuous industrial production monitoring and mobile environmental enforcement.

    In the industrial sector, the MQ-E3-SO₂ sensor is a crucial hardware support for enterprises to achieve pollutant emission compliance and complete self-monitoring tasks. Whether it's flue gas monitoring in steel sintering and pelletizing processes or waste gas emission detection in the chemical and power industries, this sensor can accurately adapt to the complex operating conditions of industrial sites. Its measurement range covers 0~20ppm, with a maximum measurement limit of 150ppm, meeting both accurate detection requirements under normal operating conditions and handling sudden high-concentration situations. Its high resolution of 0.1ppm captures minute changes in concentration, and its sensitivity of (0.55±0.15)µA/ppm ensures that trace amounts of sulfur dioxide are detected. A response time of <30s (T90) enables real-time data feedback, helping companies adjust production processes promptly and avoid exceeding pollutant emission standards.

    In the environmental protection field, the MQ-E3-SO₂ sensor's strong anti-interference capabilities and portability make it suitable for various scenarios such as mobile enforcement, environmental quality monitoring, and pollution source investigation. Environmental enforcement has now entered a phase of "precision and mobility," with drones equipped with detection devices becoming the mainstream method for pollution source detection. The low power consumption of the MQ-E3-SO₂ sensor perfectly matches the power requirements of portable detection equipment, while its excellent anti-interference capabilities effectively avoid the influence of common interfering gases such as carbon monoxide, hydrogen sulfide, and ammonia. In environments with interfering gases such as 200ppm carbon monoxide, 50ppm hydrogen sulfide, and 50ppm ammonia, the sensor's response value is far below the error threshold, and benzene even shows no response, ensuring the accuracy of detection data in complex gas environments.

    Under the dual requirements of ecological protection and high-quality industrial development, accurate monitoring of sulfur dioxide has become an insurmountable bottom line. The MQ-E3-SO₂ sulfur dioxide sensor, with technological innovation at its core, adaptability as its focus, and compliance as its principle, meets the continuous, stable, and accurate monitoring needs of industrial enterprises, while also adapting to the mobile, efficient, and anti-interference detection requirements of the environmental protection field, becoming a "core tool" for sulfur dioxide detection in both industrial and environmental sectors. Choosing Tensensor's MQ-E3-SO₂ sensor means choosing precise monitoring technology, stable product performance, and reliable brand assurance, making sulfur dioxide monitoring more efficient, accurate, and worry-free, contributing sensing power to protecting the ecological environment and promoting the green upgrading of industry.

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