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MST141 H2 sensor

MST141 H2 sensor

MST141 electrochemical hydrogen sensor is a fuel cell-type sensor. Hydrogen and oxygen undergo corresponding redox reactions at the working electrode and counter electrode, releasing electric charges to form a current. The magnitude of the generated current is proportional to the hydrogen concentration and follows Faraday's Law. The level of hydrogen concentration can be determined by measuring the magnitude of the current.
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Product Description

Sensor features:

It exhibits high sensitivity and high selectivity to hydrogen, with an extremely fast response to hydrogen. It also features linear output, a long service life, an environmentally friendly structural design, and a unique anti-leakage structure.

 

Main applications:

It is widely suitable for hydrogen concentration detection in fields such as commercial applications, energy storage power stations, and vehicle-mounted systems.

 

product specification：

 project

 parameter

Object gas

Hydrogen

Measuring range

0~1000ppm

Extreme overload

2000ppm

 Output signal

0.2~0.8nA/ppm

Repetitiveness

±2%

Resolution

0.5ppm

Typical response time (t90)

＜60 Seconds

Long-term output drift

＜2%

 Expected life

10 years

Working temperature

-20~50℃

Humidity at work

15~90%RH

 Working pressure range

0.1MPa±10%

Recommended load resistance

1KΩ

Offset voltage

 no requirement 

Structural dimensions diagram:

图片1.png

Cross-sensitive characteristic data

Typical Response of the Sensor to Various Interfering Gases / Cross-Sensitivity Characteristics (at 25˚C)

 

Object Gas

Concentration (ppm)

Hydrogen Equivalent Concentration (ppm)

Hydrogen sulfide

15

 ＜30


Sulfur dioxide

5

 ＜30


 Nitrogen dioxide

5

 ＜30


 


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