Products
Toxic Gas Sensor
for industry gas monitoring
Application:
Widely suitable for industrial, mining and environmental protection fields of nitrogen dioxide detectionProduct characteristics:
high precision1. Description
MQ-E4-NO2 is the sensor of fixed potential electrolysis type. By redox reaction, NO2 and O₂release charge and form the current. The value of current is proportional to the concentration of NO2 and follow the Faraday’s Law. By testing the value of current, the concentration of NO2 is known.
2. Application
Widely used in industry or environmental protection field for detecting NO2.
3. Appearance and dimension
4. Technical specifications
| project | parameter |
| tracer gas | Nitrogen dioxide (NO2) |
| range | 0~20ppm |
| Maximum measurement limit | 150ppm |
| sensitivity | (1.2±0.3)µA/ppm |
| resolution ratio | 0.1ppm |
| Response time (T90) | ＜30S |
| Load Resistance(recommended) | 10Ω |
| bias voltage | 0mV |
| repetitiveness | <2. Output value |
| Stability (/ month) | ＜2﹪ |
| Output linearity | linear |
| Zero-point drift (-20℃ ~40℃) | 0.2ppm |
| temperature range | -20℃~50℃ |
| Humidity range | 15﹪~90﹪RH |
| pressure limit | Standard atmospheric pressure is ± 10 |
| life length | 2 years (In Air) |
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