ME4-NO2-E4 Nitrogen Dioxide Gas Sensor

Nitrogen Dioxide Gas Sensor

Applications :

*Urban atmospheric monitoring, enterprise environmental monitoring, emission gas monitoring, emergency environmental monitoring, and environmental evaluate monitoring.

Product Advantages:

*Low power consumption
*High precision
*High sensitivity
*Wide linear range
*Good anti-interference ability
*Excellent repeatability and stability

Product Description:

ME4-NO2-E4 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 reference 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. The 4th electrode (auxiliary electrode) is used to compensate the zero current, to make it has the characteristics of strong signal level and low zero current.

Technical Parameters:

Technical	nitrogen dioxide（NO2）
Detection Range	0～20ppm
Max range	50ppm
Sensitivity	-0.205～-0.548µA/ppm
Resolution	<10ppb
Response Time(T90)	＜60S
Bias Voltage	33-100Ω(recommended)
Stability(/month)	-20%~-40%
Output Linearity	Linear
Zero drift(-20℃～40℃)	0-20ppb
Temperature range	-30℃～40℃
Humidity range	15﹪～85﹪RH
Pressure range	80-120kPa
Lifespan	2 years(in air)