In industrial settings such as coal mines, chemical plants, and oil and gas storage and transportation, methane leakage is a core hidden danger that can lead to explosions, poisoning, and other safety accidents. Traditional catalytic combustion sensors are susceptible to poisoning, rely on oxygen, have high power consumption, and short lifespans, making it difficult to meet the requirements for long-term stable and intrinsically safe monitoring. Tensensor's TX721-A1B low-power infrared methane sensor, based on NDIR (non-dispersive infrared) technology, integrates ultra-low power consumption, intrinsically safe explosion protection, poisoning resistance, long lifespan, and wide temperature adaptability, providing a safer, more reliable, and more economical one-stop solution for industrial methane detection.

TX721-A1B Low Power Infrared Gas Sensor

    I. Core Technology: NDIR Infrared Principle, Revolutionizing Traditional Sensing Logic

    TX721-A1B employs single-source dual-detector differential measurement, using a reference channel to correct the test channel in real time, fundamentally solving industry pain points such as light source attenuation, environmental interference, and temperature and humidity drift.

    *Diffusion-type air intake ensures rapid response (T90≤10s) and second-level leak warning.

    *Built-in temperature and humidity compensation algorithm ensures stable output in non-condensing environments (-40℃~70℃, 0~95% RH), unaffected by extreme conditions.

    *High-reflectivity coating on the optical path reduces light loss and prevents oxidation, resulting in more accurate and durable measurements.

    *The body is made of SUS304 stainless steel, non-toxic, stain-resistant, safe, and reliable, suitable for harsh industrial environments.

    II. Six Core Advantages Leading the Way in Industrial Methane Detection

    1. Extremely Low Power Consumption, Easy Battery Power Supply

    Operating voltage DC3.0~5.5V, average current <1.0mA, average power consumption <[email protected], peak power consumption <60mA.

    The first choice for battery-powered devices, significantly extending battery life and reducing wiring and power supply costs. Ideal for wireless portable detectors and intrinsically safe devices.

    2. Intrinsically Safe and Explosion-Proof, Ensuring Compliance in High-Risk Scenarios

    Explosion-proof rating Ex ia IIC T4 Ga, compliant with GB/T3836.4-2021 standards. Suitable for direct use in Zone 0 and Zone 1 high-risk explosion-proof environments. Complete safety certifications, ready to use upon installation.

    3. Poison Resistance + Oxygen Independence, Rock-Solid Stability in Harsh Environments

    Completely eliminates the fatal flaws of silicon poisoning, high-concentration failure, and inoperability in oxygen-deficient conditions associated with catalytic sensors. Stable detection in mines, confined spaces, and oxygen-deficient environments.

    Strong resistance to interference from sulfides, dust, and humidity; no degradation or false alarms with long-term use.

    4. High precision + fast response, zero-delay early warning: 

    Methane range 0~5.0%Vol (0~100%LEL), selectable 0~100% Vol, resolution 50ppm.

    Preheating ≤5s, T90 response ≤10s, linear accuracy ±3% FS, repeatability ±1% FS, accurate and reliable data.

    Supports UART digital output + DAC analog output, extremely simple and convenient connection to host computers, PLCs, and alarms.

    5. Intelligent self-calibration, long-term maintenance-free: 

    Default 168-hour automatic baseline calibration (ABC), cycle can be turned off/adjusted by command, strong long-term stability, monthly drift ±2% FS.

    Automatic calibration upon clean air startup significantly reduces manual calibration and lowers maintenance costs.

    6. Long Lifespan + Compact Size, More Flexible Deployment

    Standard lifespan of 5 years, far exceeding traditional sensors, resulting in lower total lifespan costs.

    Dimensions: φ20×16.6mm, Weight: ≤10g, easily embedded in portable devices, fixed detectors, and integrated systems.

    III. Comprehensive Coverage of Industrial Scenarios, Safety Everywhere

    Coal Mines/Non-Coal Mines: Gas monitoring, tunnel early warning, portable underground detectors.

    Petrochemical Industry: Oil and gas leaks, gas monitoring in tank areas, pump rooms, and valve groups.

    Gas Industry: Pipeline inspection, pressure regulating stations, methane detection in gas stations.

    Municipal/Integrated Utility Tunnels: Combustible gas monitoring in confined spaces and underground utility tunnels.

    Intrinsically Safe Explosion-Proof Equipment: Wireless detectors, battery-powered detectors, intelligent monitoring terminals.

    TX721-A1B low-power infrared methane sensor, with its NDIR infrared technology, ultra-low power consumption design, intrinsically safe explosion-proof features, and intelligent compensation, perfectly solves the four core challenges of industrial methane detection: safety, stability, battery life, and maintenance. Whether in high-risk explosion-proof scenarios, battery-powered equipment, or long-term unattended monitoring, its high reliability, low cost, and easy integration make it a core component for gas safety monitoring.

    Choose the Tensensor TX721-A1B to build a solid first line of defense for industrial safety, ensuring leaks are detected and safety is always on-call!

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