Products
Toxic Gas Sensor
Application:
widely used in urban atmospheric environment monitoring, enterprise environment monitoring, factory area unorganized emission pollution gas monitoringProduct characteristics:
High precision1. Description
MQ-E4-H2S is the sensor of fixed potential electrolysis type. By redox reaction, H2S and O₂release charge and form the current. The value of current is proportional to the concentration of H2S and follow the Faraday’s Law. By testing the value of current, the concentration of H2S is known.
2. Application
Widely used in industry, mine, or environmental protection field for detecting H2S.
3. Appearance and dimension
4.Technical specification
| project | parameter |
| Detected gas | hydrothion (H2S) |
| range | 0- 100ppm |
| Maximum measurement range | 500ppm |
| sensitivity | (0.8±0.15)uA/ppm |
| resolution ratio | 0.1ppm |
| Response time (T90) | ＜30s |
| Load Resistanc | 10Ω |
| Stability (/ month) | ＜2﹪ |
| Output linearity | linear |
| zero drift (-20℃~40℃) | ≤0.2ppm |
| temperature range | -20℃~50℃ |
| Humidity range | 15﹪~90﹪RH |
| pressure range | Standard atmospheric pressure is±10 |
| life span | 2 years |
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