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: