Hydrogen sulfide (H₂S) is a highly toxic and corrosive hazardous gas found in industries such as oil and gas, chemicals, wastewater treatment, mining, and environmental monitoring. Selecting a reliable, fast-response hydrogen sulfide sensor is crucial for ensuring personnel safety and operational stability.

    SMQ-E3-H2S electrochemical hydrogen sulfide sensor utilizes the principle of constant-potential electrochemical detection. It accurately measures gas concentration by detecting the current generated during the redox reaction of hydrogen sulfide. Featuring excellent repeatability and long-term stability, the sensor provides reliable data support for various types of gas detection equipment.

    Product Advantages

    High-Precision Detection with Rapid Response

    The sensor features a detection range of 0.5–200 ppm and can withstand a maximum gas load of 500 ppm. With a T90 response time of less than 30 seconds, it rapidly detects fluctuations in ambient hydrogen sulfide concentrations, enabling timely warnings.

    Stable, Reliable, and Long-Lasting

    The product delivers excellent repeatability and linearity, ensuring stable long-term output. It exhibits an average monthly signal drift of less than 2% and an expected service life of up to 5 years, effectively reducing equipment maintenance and replacement costs.

    Suitable for Complex Industrial Environments

    It supports continuous operation within a temperature range of -20°C to +40°C and a humidity range of 15%–90% RH (non-condensing), meeting gas detection requirements across diverse and demanding industrial conditions.

    Typical Applications

    SMQ-E3-H2S is widely used in sectors such as oil and gas, chemical manufacturing, wastewater treatment, mining, and environmental monitoring. It can be integrated into portable gas detectors, fixed gas detectors, industrial online monitoring systems, and multi-gas detection equipment to provide real-time hydrogen sulfide monitoring, thereby ensuring industrial safety and environmental protection.

    With advantages such as high sensitivity, rapid response, excellent stability, and a long service life, SMQ-E3-H2S electrochemical hydrogen sulfide sensor meets the demand for highly reliable gas detection in industrial and environmental protection sectors, making it an ideal choice for developing high-performance hydrogen sulfide detection equipment.

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