YJJ GS+4H2S Electrochemical Hydrogen Sulfide (H2S) Sensor 0-100ppm for Industrial Gas Detectors
Product Description:
YJJ GS + 4H2S Electrochemical Hydrogen Sulfide (H2S) Sensor 0–100 ppm for Industrial Gas Detectors
Features:
I. Basic Information
Full model: GS+4H2-1000 (commonly referred to as GS+4H2)
Detected gas: Hydrogen H₂
Sensing principle: Three-electrode electrochemistry
Package specification: 4-Series standard three-pin probe package
Core advantages: Low carbon monoxide CO cross-interference, fast response speed, excellent temperature and humidity stability
II. Core Performance Parameters (Standard Operating Conditions: 20℃, 50% RH, Standard Atmospheric Pressure)
Measurement range: 0 - 1000 ppm H₂
Maximum overload tolerance: 2000 ppm
Sensitivity output: 20 ± 10 nA/ppm
T90 response time: < 40s, typical ≤ 25s
Baseline zero point (clean air): -20 to 0 ppm - equivalent offset of H₂
Linearity: Output linearity within the range
Repeatability error: < ±2% FS
Recommended sampling load resistance: 10Ω
Resolution: Dependent on the rear-end circuit board, typically可达 5ppm
Polarization bias voltage: 0V, no additional bias required
Annual signal drift: < 5%/year
III. Overview of Full Range Versions of the Same Series
GS+4H2-500: 0 - 500 ppm (medical low concentration model)
GS+4H2-1000: 0 - 1000 ppm industrial standard version (GS+4H2)
GS+4H2-5000: 0 - 5000 ppm, sensitivity 7 ± 1 nA/ppm
GS+4H2-5%: 0 - 50000 ppm (5% VOL) high-range hydrogen gas probe, low CO interference version - CO series
IV. Environmental Operating Specifications
Continuous working temperature: -30℃ ~ +50℃
Air pressure applicable range: 800 - 1200 mbar
Working humidity: 15% - 90% RH, no condensation or water ingress allowed
Storage temperature: -30℃ ~ +50℃
V. Mechanical and Lifespan Parameters
Probe outer diameter: Φ20mm, standard 4-Series three-pin connector
Original factory warranty period: 12 months, conventional environmental lifespan 1 - 2 years
Origin: UK
VI. Product Applications
Portable multi-gas detector, fixed hydrogen transmitter
Energy storage battery compartment, hydrogen energy station, fuel cell leak monitoring
Metallurgical workshop, battery room, chemical plant hydrogen leakage alarm
Laboratory, explosion-proof equipment hydrogen security detection
Specifications:
| Detected gas | H2 |
| Package specification | 4-Series |
| Core advantages | Low carbon monoxide CO |
| Operating Conditions | 20℃, 50% RH |
| Measurement range | 0 - 1000 ppm |
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