Product Description:

YJJ MEv-GH01 Electrochemical Fuel Cell Type Hydrogen H2 Sensor for Hydrogen Leakage Detection

Features:

I. Core Parameters (Official Standards) Table

Project Specification Explanation

Gas to be detected Hydrogen (H₂) Flammable and explosive gas. Explosion limit: 4.0% ~ 75.6%

Detection principle Electrochemical (fuel cell type) H₂ oxidizes at the electrode to generate current. Current ∝ concentration (Faraday's Law)

Measurement range 0 ~ 2000 ppm Standard safety monitoring range (100% LEL ≈ 40000 ppm)

Overload capacity 5000 ppm Does not damage in short-term overload

Sensitivity 0.5 ~ 1.5 nA/ppm Typical micro-ampere level current output

Resolution 1 ppm Minimum concentration change detectable

Response time (T90) < 30 seconds Response speed to 90% concentration

Load resistance 500Ω / 1kΩ / 2kΩ Recommended external resistance value

Operating temperature -10℃ ~ +50℃ General industrial / vehicle environment

Operating humidity 15 ~ 90% RH (no condensation) Adaptable to most indoor and outdoor scenarios

Service life Up to 10 years Long service life, maintenance-free

Size Micro metal package (φ approximately 12mm) Suitable for portable / embedded devices

II. Main Applications (Applicable Scenarios)

Core positioning: Low concentration H₂ leakage safety monitoring (civilian / commercial / vehicle / energy storage)

New energy vehicles (hydrogen fuel cell vehicles)

Leakage alarm for hydrogen storage tanks, pipelines, fuel cell systems

Real-time monitoring of hydrogen concentration in vehicles

Safety of energy storage stations / battery boxes

Li-ion energy storage cabinets / containers: Trace H₂ detection during overcharging, thermal runaway

Early fire / leakage warning in energy storage systems

Industrial / commercial safety

Chemical, semiconductor, electronics factories: H₂ leakage monitoring

Safety inspection and alarm in laboratories, gas cylinders, pipelines

Portable / fixed detectors

Handheld hydrogen leak detector

Wall-mounted / pipeline-mounted fixed detector

Safety monitoring of small generators, hydrogen energy equipment

Specifications: