In modern industrial and agricultural sectors, warehousing and logistics, and food safety, there is a seemingly insignificant yet highly impactful gas—ethylene (C₂H₄). It is both a "plant hormone" used to ripen fruit and a key indicator gas in industrial production. However, uncontrolled emissions or leaks of this gas can lead to millions in economic losses and even safety accidents.

    How can we achieve real-time, accurate, and low-cost monitoring of this critical gas? Electrochemical ethylene gas sensors, with their superior technical performance, are emerging as a rising star in the field of environmental monitoring, bringing unprecedented intelligent solutions to various industries.

Core Technology Principle: Precise Smell in the Microscopic World

MQ-E3-C2H4 Electrochemical Ethylene Sensor

    Our electrochemical ethylene gas sensor is based on a meticulously designed microscopic electrochemical reaction. The sensor's working electrode, counter electrode, and reference electrode are immersed in a special electrolyte. When ethylene gas from the environment diffuses through a selective filter membrane to the surface of the working electrode, a specific oxidation or reduction reaction occurs under the action of a catalytic material, generating a weak current signal proportional to the gas concentration.

    This technological approach possesses unparalleled inherent advantages:

    High Sensitivity and Selectivity: Proprietary catalytic formulation and filter membrane technology effectively eliminate the influence of common interfering gases such as ethanol and CO₂, precisely "locking in" on ethylene molecules, with detection limits down to the 0.5 ppm level.

    Rapid Response and Recovery: Typically responding to changes in gas concentration within tens of seconds, achieving near real-time monitoring and gaining valuable time for rapid decision-making and intervention.

    Low Power Consumption and Long Lifespan: Low operating voltage and minimal power consumption make it ideal for integration into portable devices or long-term deployment Internet of Things (IoT) nodes, with core components boasting a lifespan of several years.

    High cost-effectiveness: Thanks to mature semiconductor technology and large-scale production, it is more cost-competitive than optical sensors, making it easier to be widely used.

Broad Application Prospects: 

"Safety Guardian" and "Quality Steward" Empowering Thousands of Industries

    1. Modern Agriculture and Precision Preservation: Safeguarding "Freshness on the Tip of the Tongue"

    In the post-harvest supply chain of fruits and vegetables, ethylene is key to controlling ripening and aging. Our sensors can:

    Intelligent Controlled Atmosphere Storage Monitoring: Real-time monitoring of ethylene concentration in cold storage, linking with ventilation or catalytic decomposition systems to effectively delay post-ripening of fruits and vegetables, extending shelf life by more than 30% and significantly reducing losses.

    Cold Chain Logistics Traceability: Integrated into transport containers, monitoring ethylene changes throughout the entire process to ensure that ethylene-sensitive fruits such as bananas and mangoes remain in optimal condition from field to table.

    2. Industrial Safety and Environmental Monitoring: Building a "Firewall" for Production

    In industrial environments such as petrochemicals and polyethylene synthesis, ethylene is an important raw material and byproduct.

    Leakage Early Warning: Deploying sensor networks around pipelines, valves, and storage tanks, immediate alarms are triggered in the event of even minor leaks, preventing accumulation and potential explosions, and ensuring the safety of personnel and equipment.

    Emissions Compliance Monitoring: Helping companies monitor ethylene concentrations at plant boundaries and emission outlets in real time, ensuring compliance with national environmental regulations and fulfilling social responsibility.

    3. Laboratory and Scientific Research Innovation: Exploring the Microscopic World with Sensitive Sensors

In fields such as plant physiology research and new material catalytic performance testing, our high-precision sensors provide researchers with reliable and continuous data support, accelerating research progress.

    4. Smart City and Special Site Monitoring: The Invisible Guardian of People's Livelihoods

    Waste Treatment Plants: Monitoring ethylene produced during the fermentation of fruit and vegetable waste, assessing environmental quality, and optimizing treatment processes.

    Indoor Air Quality Monitoring: Assessing the impact of ethylene on the indoor environment in places such as large flower markets and enclosed greenhouses.

    Ethylene, though small, is of paramount importance. From ensuring safe production to safeguarding people's quality of life, electrochemical ethylene gas sensors, with their precision, reliability, and economy, are becoming a crucial bridge connecting the physical world and digital intelligence. Choosing our electrochemical ethylene gas sensors is not just choosing a product, but also choosing a trustworthy partner to jointly usher in a new chapter of intelligent and precise environmental monitoring.