TZHCO-01B is a four-in-one gas detection module from Tensensor, integrating four high-precision gas sensors and signal processing circuits. It features a miniaturized integrated design and outputs gas concentration data in real time via a UART digital serial port. It is compatible with wearable, handheld detectors, and fixed monitoring equipment, and is widely applicable for online gas concentration detection in various industrial environments. It is a general-purpose core sensing component in the industrial gas safety field.

    Core Product Features and Advantages

    High Integration and Compact Size: The entire unit has a compact structure, weighs <50g, and has a regular size, making it easy to embed into various detection devices without occupying installation space. It is suitable for both portable and stationary product development.

    Accurate Detection and Stable Performance: Built-in temperature compensation function, strong gas selectivity, and resistance to cross-interference; response time <30s, enabling rapid capture of gas concentration changes, and stable, drift-free detection data.

    Professional Parameters and Wide Measurement Range Coverage:

    CO: 0~1000ppm, resolution 1ppm

    H₂S: 0~100ppm, resolution 1ppm

    O₂: 0~30% VOL, resolution 0.1% VOL

    CH4: 0~100% LEL, resolution 1% LEL

    Fully meets the routine detection needs of industrial toxic, harmful, oxygen-deficient, and combustible gases.

    Low Power Consumption and Strong Power Supply Adaptability: Wide voltage adaptation (3.5~5V), operating current <100mA, low power consumption, suitable for battery-powered and industrial DC power supply scenarios.     Dual Communication Modes, Simple Integration: Standard configuration includes a 9600 baud rate UART serial port (2.8V level), supporting both 1-second active upload and question-and-answer command query modes. It features a built-in standard verification protocol, making it easy to integrate with microcontrollers, PLCs, and industrial hosts.

    Tiered Audible and Visual Alarms, Intuitive Safety: A constantly flashing green light indicates normal power-on; a red light distinguishes between Level 1 and Level 2 alarms with different flashing frequencies. It includes standard alarm thresholds, providing timely warnings for oxygen deficiency, toxic gases, and excessive combustible gases.

    Wide Operating Condition Adaptability, Long Service Life: Operating temperature: -20℃~50℃, operating humidity: 15% RH~90% RH (non-condensing), suitable for complex high, low temperature, and humid conditions in mines, tunnels, and factories; expected service life up to 2 years in normal air.

    Convenient Installation and Maintenance: Standard pin definitions allow for immediate use upon wiring; unauthorized soldering and sensor replacement are prohibited. Factory-calibrated; periodic calibration every six months to one year is recommended to maintain long-term accuracy, resulting in low development and maintenance costs.

    Main Industrial Applications:

    Mining and Coal Mining: Real-time monitoring of gases in underground working environments to prevent gas leaks, hydrogen sulfide poisoning, and oxygen deficiency risks.

    Industrial Plants: Detection and early warning of toxic, hazardous, and flammable gas leaks in chemical and manufacturing workshops.

    Infrastructure Projects: Gas safety monitoring in tunnel construction, underground utility tunnels, and confined space operations.

    Security Inspection Equipment: Portable gas detectors, personal gas alarms, and fixed online monitoring terminals with built-in core modules.

    TZHCO-01B four-in-one gas detection module integrates miniaturization, high precision, fast response, wide temperature range, easy integration, and low power consumption, enabling simultaneous detection of four key industrial gases in a single step. With stable performance, open protocols, and wide applicability, it can significantly shorten the development cycle of industrial testing equipment and improve the safety management capabilities of the operating environment, making it a cost-effective and preferred module for industrial gas safety testing projects.

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