Principle Introduction:
Winsen Electronics, as a professional gas sensor manufacturer, produce NO2 gas sensor, Nitrogen Dioxide sensor for industrial use, using electrochemical working principle.
ME4-NO2 nitrogen dioxide gas sensor is constant potential electrolysis type. Oxidation-reduction reaction with nitrogen dioxide and oxygen take place respectively on the working electrode and on the counter electrode. The process releases electric charge and generates current. The current is in direct proportion to the concentration of nitrogen dioxide. So the concentration of the target gas could be got by measuring the value of current.

Applications :
It is used for nitrogen dioxide detection in industrial occasions, mine and environmental protection field.

Technical parameters :

Tips:For more parameter information, please refer to the latest manual provided by salesman.

Detection Gas	nitrogen dioxide（NO2）
Detection Range	0～20ppm nitrogen dioxide sensor, NO2 gas sensor
Max range	150ppm
Sensitivity	（1.2±0.3）µA/ppm
Resolution	0.1ppm
Response Time(T90)	＜30S
Bias Voltage	10Ω(recommended)
Load Resistance	0mV
Repeatability	＜2﹪Output value
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±10﹪
Lifespan	2 years(in air)

Dimensions:

Reference Circuit :

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