In the complex scenarios of chemical production and environmental protection, chlorine (Cl₂), a common but highly toxic industrial gas, poses a direct threat to personnel safety, production stability, and ecological health through leak monitoring. Traditional detection methods often face challenges such as slow response, low accuracy, and susceptibility to interference. Tensensor's MQ-E3-CL2 electrochemical chlorine sensor, with its constant-potential electrolysis principle and advanced process design, provides a highly reliable and accurate solution for real-time chlorine monitoring, making it an ideal choice for the chemical, pharmaceutical, and environmental monitoring industries.

MQ-E3-Cl2 Electrochemical Cl2 Sensor

Precise Monitoring, Leading Technology

    The MQ-E3-CL2 employs constant-potential electrolysis sensing technology. Chlorine undergoes a redox reaction on the working and counter electrodes, generating a current signal proportional to its concentration, resulting in rapid response and excellent linearity. Its wide measurement range of 0–10 ppm covers common monitoring needs, with a maximum measurement capacity of 100 ppm, a sensitivity of 0.6 μA/ppm, and a resolution of up to 0.1 ppm, enabling accurate early warning even in low-concentration environments. With a response time of <60 seconds, it ensures that leak events are detected immediately.

Stable and Reliable, Strong Environmental Adaptability

    This sensor possesses excellent anti-interference capabilities and long-term stability. Within a wide temperature range of -20℃ to 50℃, zero-point drift is ≤0.2ppm, monthly stability is <2%, and repeatability error is <2%, ensuring continuous and reliable operation in complex industrial environments. Its cross-interference characteristics have undergone rigorous testing, exhibiting extremely low response to common interfering gases such as hydrogen sulfide, carbon monoxide, and sulfur dioxide, effectively reducing false alarms and enhancing system reliability.

Safe Design and Easy to Use

    The sensor adopts a low-power design, with a recommended load of only 10Ω, compatible with 3.3V to 5.5V power supplies, and easy to integrate into various monitoring systems. The structure prioritizes safety protection, equipped with a waterproof and breathable membrane, which must not be removed or damaged to prevent electrolyte leakage. Soldering and bending of the leads are prohibited during installation and use. A 48-hour aging process is required beforehand to ensure stable performance.

Wide Applications, Protecting Multiple Scenarios

    Chemical and Pharmaceutical Industries: Leakage monitoring during chlorine production, storage, and use;

    Environmental Monitoring Systems: Chlorine concentration detection in wastewater treatment and exhaust emissions;

    Safety Production and Emergency Response: Plant environmental monitoring and personnel protective equipment support;

    Laboratory and Scientific Research Fields: Precise measurement in gas analysis and environmental simulation experiments.

    In today's era of "Industry 4.0" and "Smart Environmental Protection," reliable gas monitoring technology is the cornerstone of safe production and green development. The MQ-E3-CL2 chlorine sensor, with its comprehensive advantages such as high accuracy, strong anti-interference capabilities, and long lifespan, has become a trusted choice in the field of chlorine monitoring. Choosing Tensensor is not just choosing a product, but choosing continuous protection for your safety.

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