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Products

Toxic Gas Sensor

MQ-E4-NO2 Electrochemical Gas Sensor

for industry gas monitoring

Application:

Widely suitable for industrial, mining and environmental protection fields of nitrogen dioxide detection

Product characteristics:

high precision
high sensitivity
wide linear range
low power consumption
strong anti-interference ability
excellent repeatability and stability

1. Description

MQ-E4-NO2 is the sensor of fixed potential electrolysis type. By redox reaction, NO2 and Orelease charge and form the current. The value of current is proportional to the concentration of NO2 and follow the Faradays 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

projectparameter
tracer gasNitrogen dioxide (NO2)
range0~20ppm
Maximum measurement limit150ppm
sensitivity(1.2±0.3)µA/ppm
resolution ratio0.1ppm
Response time (T90)<30S
Load Resistance(recommended)10Ω
bias voltage0mV
repetitiveness<2. Output value
Stability (/ month)<2﹪
Output linearitylinear
Zero-point drift (-20℃ ~40℃)0.2ppm
temperature range-20℃~50℃
Humidity range15﹪~90﹪RH
pressure limitStandard atmospheric pressure is ± 10
life length2 years (In Air)




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