In industrial production processes, the emission and leakage of harmful gases are significant threats to personnel safety and environmental health. Nitrogen dioxide (NO₂), a common toxic gas, is widely present in industries such as chemical, mining, energy, and metallurgy. Long-term exposure or high-concentration exposure can cause serious damage to the human respiratory system. Therefore, accurate and reliable monitoring of NO₂ concentration has become an indispensable part of industrial safety protection systems.

    Tensensor's MQ-E3-NO₂ nitrogen dioxide gas sensor is a high-performance electrochemical sensor designed to address this industrial monitoring need. With its superior detection performance and stable environmental adaptability, it has become a preferred component in industrial gas detection equipment.

MQ-E3-NO2 Electrochemical NO2 Sensor

Product Overview

    The MQ-E3-NO₂ is an electrochemical sensor that accurately detects gas concentration by measuring the current generated during the redox reaction of nitrogen dioxide at the working electrode. This sensor features low power consumption, high accuracy, a wide linear range, and strong anti-interference capabilities, making it suitable for various harsh industrial environments.

Industrial Application

    Chemical Industrial Parks: Real-time monitoring of potential NO₂ leaks during production to prevent poisoning accidents.

    Underground Mines: Detecting NO₂ generated from blasting, diesel engine exhaust, etc., to ensure miner safety.

    Environmental Monitoring Stations: Used for monitoring air quality at plant boundaries to meet environmental emission standards.

    Power and Energy Industry: Monitoring NO₂ emissions during boiler combustion, gas-fired power generation, etc.

Product Advantages

    1. High Precision and Stability: The sensor output exhibits excellent linearity, with a repeatability error of less than 2%, ensuring high monthly stability and long-term reliable operation.

    2. Strong Anti-interference Capability: The MQ-E3-NO₂ sensor exhibits extremely low response to common industrial interfering gases such as carbon monoxide, hydrogen sulfide, and sulfur dioxide, effectively avoiding false alarms.

    3. Wide Temperature and Humidity Adaptability: It can operate stably in environments ranging from -20℃ to 50℃ and 15%–90%RH, adapting to extreme industrial environments.

    4. Long Lifespan Design: With a lifespan of up to 2 years in clean air, it reduces the frequency of maintenance and replacement.

    The MQ-E3-NO₂ nitrogen dioxide gas sensor, with its superior performance and reliable industrial applicability, provides strong technical support for industrial safety and environmental monitoring. Whether in stationary gas detectors, portable detection devices, or environmental monitoring systems, it can handle demanding NO₂ detection tasks.