In critical sectors such as industrial production, mining operations, and environmental protection, gas monitoring is not only fundamental to safe operation but also essential for sustainable development. Nitrogen dioxide (NO₂), a common harmful gas, requires precise concentration detection for preventing safety accidents, optimizing production processes, and protecting the ecological environment. Today, we recommend a superior product —MQ-E3-NO₂ electrochemical NO2 gas sensor, which provides a high-precision and highly reliable technical solution for your monitoring needs.

Core Advantages: Accurate, Stable, and Easy to Use

    The MQ-E3-NO₂ sensor employs an advanced constant-potential electrolysis principle, achieving linear detection of nitrogen dioxide concentration by measuring the current generated by the reaction between the working and counter electrodes. This product boasts the following outstanding features:

    High Precision and High Sensitivity: Standard sensitivity reaches (0.78±0.42) μA/ppm, with a resolution up to 0.1ppm, ensuring accurate capture of gas concentration changes within the 0-20ppm range.

    Excellent Stability and Repeatability: Output monthly stability and repeatability are both better than 2%, with a lifespan of up to two years, suitable for long-term continuous monitoring tasks.

    Wide Environmental Adaptability: Stable performance within a temperature range of -20℃ to 50℃ and a humidity range of 15%-90%RH, suitable for various complex industrial environments.

    Strong Anti-interference Capability: Through optimized electrode design and material selection, it exhibits extremely low response (mostly zero or negligible) to common interfering gases such as carbon monoxide, sulfur dioxide, and ammonia, ensuring the purity and reliability of monitoring data.

Wide Range of Applications: From Safe Production to Green Environmental Protection

    Industrial Safety Monitoring: Used for NO₂ leak early warning in chemical plants, power plants, mines, etc., ensuring the safety of personnel and equipment.

    Environmental Emission Monitoring: Integrated into environmental monitoring stations and mobile detection equipment, it monitors atmospheric pollutant emissions in real time, assisting in environmental law enforcement and pollution control.

    Smart cities and the Internet of Things: can be embedded in intelligent ventilation systems, air quality monitoring networks, etc., to provide data support for urban environmental management.

    With the continuous advancement of gas sensing technology, the MQ-E3-NO2 sensor, with its low power consumption, high linearity, and strong anti-interference characteristics, has become an ideal choice for nitrogen dioxide monitoring in industrial and environmental protection fields. It is not just a sensor, but a reliable partner for achieving intelligent and green operations.

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