Products
Toxic Gas Sensor
Application:
Widely suitable for industrial and environmental protection field of hydrogen testingProduct characteristics:
high precisionDescription
MQ-E4-H2 is the sensor of fixed potential electrolysis type. By redox reaction, H₂and O₂release charge and form the current. The value of current is proportional to the concentration of H₂. By testing the value of current, the concentration of H₂ is known.
Specifications
| Media | H2 |
| Testing range | 0-1000ppm (2000ppm Max.). |
| Sensitivity | 0.01±0.005μA/ppm |
| Resolution ratio | 2ppm |
| Load resistor | 10Ω |
| Repeatability | <2% output value |
| Stability(per month) | <2% output value |
| Bias voltage | 0mV |
| Output linearity | linearity |
| Zero drift(-20℃~+40℃) | ≤20ppm |
| Temperature range | -20℃~+50℃ |
| Humidity | 15%-90%RH |
| Response time | ≤90s |
| Pressure | standard air pressure±10% |
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