Product Overview
The SX-GH2TSA hydrogen gas detection sensor is a potentiostatic electrochemical sensor. Hydrogen and oxygen undergo oxidation-reduction reactions at the working electrode and counter electrode, respectively, generating an electrical current. The generated current is proportional to the hydrogen concentration, allowing the H₂ concentration to be determined by measuring the output current.
Main Features
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High Accuracy, Long Service Life
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Fast Response, fast return to zero
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Low Power Consumption, High Sensitivity
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Wide Linear Range
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Strong Anti-Interference Capability
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High Resistance to Interference
Product Application
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Hydrogen detectors and instruments
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Industrial site H₂ gas detection
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Vehicle-mounted H₂ detection
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Smart municipal H₂ detection
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Environmental-protection H₂ detection
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Technical Data
| Measurement | |
| Example Model | SX-GH2TSA-2A0 |
| Detection Principle | Electrochemical, 3-electrode |
| Detection Gas | Hydrogen (H₂) |
| Detection Range | 0–1000 ppm |
| Maximum Load Concentration | 2000 ppm |
| Sensitivity & Output | |
| Sensitivity | 20 ± 10 nA/ppm |
| Zero Drift | ±5 ppm |
| Resolution | 1 ppm |
| Repeatability | 2% of output signal |
| Long-Term Stability | <2% signal/month |
| Linearity | Linear |
| Response | |
| Response Time | T90 < 30 s |
| Stability & Service Life | |
| Shelf Life | 12 months after delivery |
| Service Life | 2 years |
| Electrical Data | |
| Bias Voltage | 0 V |
| Load Resistance | 5–30 Ω |
| Environmental Conditions | |
| Operating Temperature | −30°C to +50°C |
| Operating Humidity | 15–90% RH, non-condensing |
| Operating Pressure | 90–110 kPa |
| Mechanical Data | |
| Body Diameter | Ø20 mm |
| Body Height | 16.95 mm |
| Pin Length | 4.40 mm |
| Pin Diameter | Ø1.5 mm |
| Electrode Circle Diameter | Ø13.5 mm |
| Dimensional Tolerance | ±0.20 mm |
| Cross Interference | |
| Carbon Monoxide CO |
−8 ppm H₂ at 100 ppm |
| Ethylene C₂H₄ | −0.2 ppm H₂ at 10 ppm |
| Hydrogen Sulfide H₂S | 9 ppm H₂ at 50 ppm |
| Nitric Oxide NO | 4 ppm H₂ at 50 ppm |
| Nitrogen Dioxide NO₂ | 2 ppm H₂ at 10 ppm |
Certifications & Compliance
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