In the fruit storage and logistics industry, ripening is a crucial process. Whether it's bananas, kiwis, mangoes, or avocados, they are all extremely sensitive to ethylene gas concentrations during the post-ripening stage. Ethylene, as a plant endogenous hormone, is known as a "fruit ripening agent." However, too low an ethylene concentration results in ineffective ripening; too high a concentration leads to overripe fruit and rot, causing significant economic losses. How to achieve precise monitoring and control of ethylene concentration has become a core challenge for the intelligent upgrading of the fruit ripening industry.

    Tensensor's MQ-E3-C2H4 electrochemical ethylene sensor is an ideal choice tailored for this scenario.

MQ-E3-C2H4 Electrochemical Ethylene Sensor

    Professional Sensing, Precise and Reliable

    MQ-E3-C2H4 utilizes electrochemical principles, accurately reflecting gas concentration by detecting the current generated by the electrochemical reaction of ethylene on the working electrode. Its core advantages are:

    High Precision and High Sensitivity: Typical sensitivity is 0.070 μA/ppm, with a resolution up to 0.5 ppm, accurately capturing minute changes in ethylene levels in the ripening environment, providing reliable data support for the control system.

    Wide Measurement Range and Excellent Linearity: The measurement range covers 0–100 ppm, with a maximum measurement limit of 200 ppm, fully covering the concentration requirements at all stages of fruit ripening. High output linearity facilitates system calibration and control.

    Fast Response: The T90 response time is less than 20 seconds, allowing real-time feedback of concentration changes, ensuring a stable and controllable ripening process.

    Low Power Consumption and Stability: No bias voltage is required, supporting a 10 Ω load resistor. Long-term stability is better than 5%, and the lifespan in air can reach 3 years, significantly reducing maintenance costs.

    Adapting to Stringent Requirements of Fruit Ripening Environments

    Fruit ripening chambers typically experience variations in temperature and humidity, and complex gas compositions. MQ-E3-C2H4 exhibits excellent environmental adaptability:

    Operating temperature range: -20℃～50℃, humidity: 15%～90% RH, enabling it to adapt to environmental changes in ripening chambers under different seasons and operating conditions.

    It exhibits extremely low response to common interfering gases such as hydrogen sulfide and sulfur dioxide (typically 0 ppm). Even in environments with certain concentrations of carbon monoxide and hydrogen, it maintains accurate response to ethylene, avoiding misjudgments caused by cross-interference.

    Facilitating Upgrades to Intelligent Ripening Systems

    Integrating MQ-E3-C2H4 into the automated control system of the ripening chamber enables closed-loop control of ethylene concentration. Sensors collect concentration data in real time, and the control cabinet automatically adjusts the release of ethylene gas or the ventilation frequency based on set thresholds, ensuring the fruit is always in the optimal ripening environment. This not only improves ripening consistency but also significantly reduces the frequency of manual inspections, lowering the loss rate and truly achieving "on-demand ripening and precise management."

    In the fruit ripening industry's transformation from "experience-driven" to "data-driven," accurate sensing is fundamental, and stable reliability is the guarantee. The MQ-E3-C2H4 electrochemical ethylene sensor, with its excellent sensitivity, good selectivity, wide adaptability, and long-term stability, has become the core sensing element of the intelligent monitoring system for ripening warehouses, helping every fruit to ripen to "just the right degree."

    If you are planning to enter the fruit storage, cold chain logistics, or smart agriculture sectors, please feel free to learn more about the technical details and integration solutions of the MQ-E3-C2H4.

Email: [email protected]

WhatsApp: +86 18335818384