In modern urban management and industrial production, nitrogen dioxide (NO2), as one of the major air pollutants, requires precise monitoring not only to meet environmental standards but also to directly impact residents' respiratory health. Tensensor's MQ-E3-NO2 electrochemical NO2 sensor, with its superior electrochemical detection technology, is providing solid data support for smart environmental protection and industrial safety.

Core Technology: Precise Detection via Potential Electrolysis

     MQ-E3-NO2 employs an advanced potential electrolysis principle. Its working logic is precise and efficient:

    Chemical Energy Conversion: NO2 and oxygen undergo a redox reaction at the working and counter electrodes, releasing charge to form a current.

    Linear Correlation: The magnitude of the generated current is strictly proportional to the NO2 concentration in the environment.

    High Performance: This principle endows the product with core advantages such as high precision, a wide linear range, and strong anti-interference capabilities, ensuring reliable detection even in complex environments.

Performance Analysis: Industrial-Grade Sensitive Sensing

    To meet the stringent requirements of environmental protection and industrial scenarios, the MQ-E3-NO2 excels in all technical specifications:

    * **Precise Measurement Range:** A standard measurement range of 0~20ppm with a resolution of up to 0.1ppm, capable of detecting changes in extremely low concentrations of pollutants in the air.

    * **Rapid Feedback:** A response time (T90) of less than 25 seconds allows for rapid triggering of the alarm system in the event of sudden pollution or leakage.

    * **Environmental Resilience:** Exhibiting excellent repeatability (<2% of output value) and long-term stability, it operates stably within a temperature range of -20~50°C.

Application Areas

    Atmospheric environment monitoring: Used for urban air quality monitoring, indoor air quality testing, and industrial waste gas emission monitoring.

    Industrial safety: Monitors NO2 in chemical, petrochemical, and other industries to ensure worker safety.

    Indoor air quality: Monitors NO2 in indoor environments such as homes, schools, and offices to protect human health.

    Scientific research: Used to monitor the impact of NO2 concentration changes on the health and stability of ecosystems.

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