Accurate detection of carbon dioxide concentration is crucial in industrial safety production, environmental monitoring, and process control. Tensensor's TX721-A1 infrared carbon dioxide gas sensor, with its high precision, multiple output modes, and intrinsically safe explosion-proof design, has become an ideal choice for industrial gas detection.

Product Overview 

TX721-A1 Infrared CO2 Gas Sensor

    The TX721-A1 is an intelligent CO₂ sensor based on the non-dispersive infrared (NDIR) principle. This sensor features oxygen independence, resistance to moisture interference, long lifespan, and high stability, making it widely applicable to various harsh industrial environments.

Core Advantages

    1. High Precision and Fast Response

    Wide Measurement Range: Supports multiple ranges from 0 to 10% Vol (i.e., 0 to 100,000 ppm)

    Accuracy Up to: ±(50ppm + 5% of reading)

    Short Response Time: T90 < 30 s

    Repeatability: ±1% of full range or ±2% of reading

    Built-in temperature compensation, excellent output linearity

    2. Multiple Output Interfaces, Flexible Adaptability

    UART digital output, supports custom protocol communication

    Analog voltage output (0.4~2V), easy to connect to PLC, DCS and other control systems

    Fixed 9-byte communication frame, robust verification mechanism, stable and reliable communication

    3. Intrinsically Safe Explosion-Proof Design, Safe and Reliable

    Explosion-proof Mark: Exib IIB T4 Gb

    Complies with GB3836.1-2010 and GB3836.4-2010 standards

    Suitable for Zone 1 and Zone 2 explosive environments

Requires use with intrinsically safe power supplies and safety barriers to ensure system safety

    4. Rugged and durable, adaptable to harsh environments

    Operating temperature: -20℃ to 60℃

    Operating humidity: 0~95% RH (non-condensing)

    Protection rating: IP54

    Average power consumption <85 mA, lifespan >5 years

Typical Application Scenarios

    Industrial Safety and Environmental Monitoring: CO₂ concentration monitoring in workshops, warehouses, underground pipe corridors, etc.

    HVAC and Indoor Air Quality Control: Building automation, fresh air systems

    Agricultural and Livestock Environmental Monitoring: Carbon dioxide regulation in greenhouses and farms

    Process Control: CO₂ concentration detection in fermentation, chemical processing, carbon capture, and other processes.

    The TX721-A1 infrared carbon dioxide gas sensor combines high precision, multiple outputs, intrinsic safety, explosion-proof design, and long lifespan, making it the preferred device for industrial-grade gas detection applications. Whether used for environmental safety monitoring or process optimization, it provides stable and reliable data support, helping enterprises achieve intelligent and safe production.