4H2-40000 Electrochemical Hydrogen Gas Sensor For Environmental & Equipment

MOQ： 1PCS
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Payment Terms	L/C, D/A, D/P, T/T, Western Union, MoneyGram
Supply Ability	5000PCS
Delivery Time	5-8 work days
Packaging Details	Standard packaging
Sensitivity	0.007±0.002 μA/ppm
Baseline (20℃)	<±0.2 μA
Baseline Drift	Equivalent to 0 - 20 ppm
Resolution	80 ppm
Response Time (T90)	≤60 seconds
Long - term Stability	<2% signal value/month
Model Number	4H2-40000
Place of Origin	CN

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Product Specification


Payment Terms	L/C, D/A, D/P, T/T, Western Union, MoneyGram	Supply Ability	5000PCS
Delivery Time	5-8 work days	Packaging Details	Standard packaging
Sensitivity	0.007±0.002 μA/ppm	Baseline (20℃)	<±0.2 μA
Baseline Drift	Equivalent to 0 - 20 ppm	Resolution	80 ppm
Response Time (T90)	≤60 seconds	Long - term Stability	<2% signal value/month
Model Number	4H2-40000	Place of Origin	CN
High Light	electrochemical hydrogen gas sensor ，hydrogen gas sensor for environmental control ，4H2-40000 gas sensor for equipment

4H2-40000 Electrochemical Hydrogen Gas Sensor For Environmental & Equipment Control

Product Applications:

The 4H2-40000 gas sensor is an electrochemical hydrogen (H₂) sensor designed for:

Industrial Safety Monitoring
- Detecting hydrogen leaks in petrochemical plants, refineries, and metallurgical facilities.
- Monitoring H₂ concentrations in coal mines and fire - fighting scenarios to prevent explosions.
Environmental & Equipment Control
- Used in portable or fixed detection devices for hydrogen - related environmental monitoring.
- Suitable for hydrogen - powered vehicle systems, fuel cell stations, and laboratory gas safety checks.
Wide - Range Sensing
- Ideal for applications requiring high - range H₂ detection (0–40,000 ppm), including industrial process control and gas storage areas.

Product Features:

Ultra - Wide Measurement Range
- 0–40,000 ppm (0–100% LEL), enabling detection from low - level leaks to high - concentration environments.
High Sensitivity & Resolution
- Sensitivity: 0.007 ± 0.002 μA/ppm; resolution: 80 ppm, ensuring precise H₂ concentration monitoring.
Rapid Response
- Response time (T90): ≤60 seconds, allowing immediate alerts for sudden H₂ leaks.
Stable Performance
- Baseline drift: Equivalent to 0–20 ppm; long - term output drift: <2% signal/month, ensuring consistent reliability.
Robust Environmental Adaptability
- Operating temperature: -20°C–50°C; humidity: 15%–90% rh (non - condensing); pressure: 90–110 kPa.
Three - Electrode Design
- Enhances anti - interference capability and measurement accuracy in complex gas environments.
Long Service Life
- Expected lifespan: 2 years in clean air; storage life: 6 months (original packaging), reducing replacement costs.
Compact & Versatile
- 4 - series size (≈5g), compatible with both portable and fixed - mounted detection equipment.

Key Technical Advantages:

Low Cross - Sensitivity
- Minimal interference from gases like H₂S, SO₂, and Cl₂ (refer to cross - sensitivity data for details).
Zero Bias Voltage
- Requires 0 mV bias voltage, simplifying circuit design for sensor integration.
Intrinsic Safety
- Safe for use in hazardous areas with explosive gas mixtures (consult safety certifications for compliance).

Product Code	2112b0644400
Measuring Range	0 - 40,000 ppm H2 (0 - 100% LEL value)
Operating Principle	Three - electrode electrochemical
Gas Sensitivity	7 ± 2 nA/ppm
Response Time (T90)	≤ 60 s (typical 35 s)
Repeatability	< ± 2% signal
Linearity	Linear
Long - term Output Drift	< 2% signal/month
Resolution	70 ppm
Recommended Load	5 - 35 Ω
Bias Voltage	0 mV
Operating Temperature Range	- 30℃ - 50℃
Operating Humidity	15% rh - 90% rh (non - condensing)
Operating Pressure Range	800 - 1200 mbar
Recommended Storage Temperature	0℃ - + 20℃ (in sealed package)
Expected Operating Life	24 months in air
Storage Life	6 months in original package
Standard Warranty	18 months from the date of delivery
Cross - sensitivity (Carbon Monoxide 50 ppm)	170 ppm H2 equivalent

Company Details

Bronze Gleitlager

Bronze Sleeve Bushings

and

Graphite Plugged Bushings

from Quality China Factory

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Business Type:

Manufacturer,Trading Company 
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Year Established:

2006 
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Total Annual:

900000-1000000
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Employee Number:

50~80 
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Ecer Certification：

Verified Supplier 

Yijiajie Electronics is a full range of silicon pressure sensors from the United States, FREESCALE/, GE, MEAS, SMI, and a full range of sensing and control products from the United States pressure, temperature and humidity, gas flow, current, Hall effect, etc., Japan HAMAMATSU flame, UV sensors, ph... Yijiajie Electronics is a full range of silicon pressure sensors from the United States, FREESCALE/, GE, MEAS, SMI, and a full range of sensing and control products from the United States pressure, temperature and humidity, gas flow, current, Hall effect, etc., Japan HAMAMATSU flame, UV sensors, ph...

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ShenzhenYijiajie Electronic Co., Ltd.
Room 3306AB 33rd Floor, SEG Plaza,Huaqiang North Road, Futian District, Shenzhen Guangdong Province 518028
https://www.oxygengassensors.com/

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