Aeroqual Nitrogen Dioxide (NO2) Sensor Head 0-1 ppm (ENW)

This Nitrogen Dioxide (N02) Sensor Head uses Gas Sensitive Electrochemical (GSE) technology to detect Nitrogen Dioxide from 0-1 ppm with 0.001 ppm resolution and accuracy up to ±0.02 ppm.

**DISCONTINUED - replaced with the END sensor*

Nitrogen Dioxide Information

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This Nitrogen Dioxide (N02) Sensor Head uses Gas Sensitive Electrochemical (GSE) technology to detect Nitrogen Dioxide from 0-1 ppm with 0.001 ppm resolution and <±0.02 ppm accuracy (in concentrations from 0 - 0.2 ppm) or  <± 10% accuracy (in concentrations from 0.2 -1 ppm).

This sensor uses an active sensor technology with an internal fan to pull air across the GSE sensor at a specific flow rate for accurate gas detection.  This fan pulls a stream of air past the sensor every 60 seconds providing a new reading of NO2 levels and resulting in a 30 second response time.

This sensor head will be a direct fit onto any Series-200, Series-300, or Series-500 Aeroqual ozone monitor.  This head can be purchased as an addition to your existing monitor, or with a new base unit.  To purchase with a base unit see our Aeroqual ozone monitor page.  If you currently have an Aeroqual ozone monitor this sensor will be a direct fit for your current monitor.  The Series-200, Series-300, or Series-500 will automatically detect this as a 0-1 ppm NO2 head and react accordingly.

For more information on Nitrogen Dioxide click HERE



Additional Information:

Case Study on the use of the Series-500 + NO2 head for NO2 detection by the University of Birmingham.

White paper  - Evaluation and Calibration of Aeroqual series 500 portable gas sensors for accurate measurement of ambient ozone and nitrogen dioxide



Compare the Series 200, 300, 500 monitors:

Compare the Aeroqual handheld devices


Aeroqual Series-200


Aeroqual Series-300


Aeroqual S-500

Interchangeable sensor head Yes Yes Yes
Digital LCD Display Yes Yes Yes
Min, Max, Average readings on screen Yes Yes Yes
Field Replaceable Battery Yes Yes Yes
Remote Sensor Capability Yes Yes Yes
Temp and HR Sensor optional Yes Yes Yes
External Control Outputs No Yes Yes
Audible Alarm No Yes Yes
High and Low Alarms No Yes Yes
0-5 VDC Analog output No Yes Yes
Zero Calibration capability Yes Yes Yes
Span Calibration capability No Yes Yes
Internal Data Logging Capability No No Yes

PC connection cables and capability

No No



 View a brochure with specifications on the Series-200, 300, and 500.



Detailed Sensor Specifications for Aeroqual ambient sensors

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Sensor Type:

There are two types of Aeroqual sensors, type 1 and type 2. 
The type 1 is used with the S-200, S-300, S-500, and S-900 monitors. 
The type 2 is calibrated specifically with fittings on the end allowing it to be used with the ENC enclosure and in the S930

Aeroqual type-1 and type-2 sensors types


Full list of technical information and specifications for all Aeroqual sensors

Nitrogen Dioxide Information

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Manufacturer Aeroqual
Call For Price No
Gas Nitrogen Dioxide (NO2)
Sensor Type GSE (Gas Sensitive Electrochemical)
Range 0-1 ppm
Maximum Exposure 2 ppm
Monitor sensor fits S-200 / S-300 / S-500, Series-900
Minimum Detection Limit 0.005
Accuracy < +/- 0.02 ppm from 0-0.2 ppm; < +/- 10% from 0.2-1 ppm
Resolution 0.001 ppm
Response Time <60 s
Sampling Method Fan
Operational Temperature Range 0 to 40 C
Operational RH Range 10 to 90 %
Warranty 6 Month
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