Facing these challenges, HOFUTECH has delivered a focused and professional solution: instead of building a comprehensive analytical platform, we focus on the four core parameters—trace oxygen, trace hydrogen, dew point, and flow rate—to provide accurate, reliable, and traceable testing and measurement solutions for the entire hydrogen energy industry chain.

I. Why These Four Parameters?

In the hydrogen quality infrastructure system, there are numerous parameters. However, returning to the essence of engineering, "purity, safety, efficiency, and fairness" are four key terms that correspond to four core measurement needs:

HOFUTECH's selection logic is clear: we do not blindly pursue "everything measurable," but instead strive for excellence in the four most essential and urgent dimensions of hydrogen energy.

II. Four Core Technologies, Covering All Hydrogen Scenarios

[Technology 1] Trace Oxygen Analysis: From ppm to ppb, protecting the "breathing" of fuel cells

Typical Scenarios: Hydrogen production plant exit inspection, hydrogen incoming acceptance at refueling stations, and fuel cell intake protection

In the fuel cell hydrogen standard GB/T 37244-2018, oxygen content is strictly limited. We adopt a combined electrochemical and fluorescence quenching technology route:

• Electrochemical Sensor: Suitable for portable rapid screening, with fast response and simple maintenance, verified reliability in hundreds of refueling station daily inspections.
• Fluorescence Quenching Method: Achieves ppb-level detection limits, no consumables, no sample gas consumption, making it the preferred choice for mobile detection vehicles and laboratory high-precision analysis.

[Technology 2] Trace Hydrogen Analysis: Thinking in Reverse, Exposing Invisible Leaks

Typical Scenarios: System purging verification, environmental safety monitoring, and cross-contamination detection

Traditional hydrogen detection equipment focuses on measuring high-concentration hydrogen, whereas we take a different approach—measuring trace hydrogen leakage or residual in background gas.

• Electrochemical Trace Hydrogen Sensor: ppb-level sensitivity, enabling early leak warnings in compressor rooms and hydrogen areas, responding one order of magnitude faster than traditional catalytic combustion sensors.
• Thermal Conductivity Method (with Pre-separation): Suitable for detecting residual hydrogen after nitrogen purging, accurately determining whether the system is safe for opening.

[Technology 3] Dew Point Analysis: Controlling Moisture to Extend System Life

Typical Scenarios: Electrolysis hydrogen drying process control, regular inspection of hydrogen storage cylinder groups, and anti-ice blockage in hydrogen mixing pipelines

Moisture is an "invisible enemy" in hydrogen systems. We offer a two-platform solution: cold mirror method and capacitance method:

• Cold Mirror Dew Point Meter: Absolute measurement without calibration, precision of ±0.1°C, serving as the standard configuration for mobile detection vehicles.
• Capacitive Dew Point Sensor: Compact size, fast response, suitable for online continuous monitoring and portable rapid screening, offering significant cost-effectiveness advantages.

[Technology 4] Flow Measurement: The "Fair Ruler" for Trade Settlement

Typical Scenarios: Mandatory inspection of hydrogen refueling stations, hydrogen production plant output measurement, and pipeline hydrogen blending ratio control

Flow measurement directly relates to economic settlement. We integrate Coriolis, thermal, and ultrasonic technologies, matching them precisely according to scenarios:

• Coriolis Mass Flow Meter: Trade-grade accuracy (±0.1%~0.2%), directly measuring mass flow, unaffected by pressure/temperature, serving as the core metering component in hydrogen refueling stations.
• Complementary Inspection Device: Strictly following the national metrology inspection regulation JJG 996 "Hydrogen Refueling Station," we provide three inspection schemes: standard meter method, weighing method, and high-pressure actual flow standard device, supporting actual flow inspection at 35MPa/70MPa.

III. From "Single Instrument" to "System Solution": The Integration Value of Mobile Detection Vehicles

While single-parameter measurement capability is important, real-world operation of hydrogen systems requires multi-parameter collaborative judgment.

HOFUTECH's hydrogen quality mobile detection vehicle integrates the above four core technologies into a van, achieving:

IV. Industry Application Overview: Full Coverage from Hydrogen Production to Use

V. Why Choose HOFUTECH?

Focused, therefore professional. We do not produce chromatographs, nor do we pursue a "comprehensive" laboratory equipment line. Instead, we concentrate all R&D resources on the four most essential parameters in hydrogen energy, ensuring every product undergoes strict hydrogen compatibility verification and long-term reliability testing.

Traceable, therefore credible. Our flow measurement inspection devices strictly follow national regulations, and we provide supporting standard gas generation devices, pressure calibrators, and other metrological support equipment to help customers establish a complete value traceability system.

Scenario-based, therefore applicable. From portable handheld instruments to mobile detection vehicles, from online monitoring to trade inspection, we provide product forms deeply aligned with the actual operational scenarios of hydrogen energy, rather than simply moving "laboratory instruments" into industrial settings.

VI. Conclusion: In the Era of Hydrogen Quality, We Walk Alongside You

In the first half of the hydrogen energy industry, the issue was "whether there is hydrogen"; in the second half, the competition is about "how good the hydrogen is."

HOFUTECH is willing to be your professional partner in the era of hydrogen quality—protecting the purity and safety of every cubic meter of hydrogen through precise trace oxygen analysis, sensitive trace hydrogen detection, reliable dew point monitoring, and fair flow measurement.

From hydrogen production to use, from testing to measurement, HOFUTECH walks alongside you every step of the way.