This the new and improved 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. The previous versions of the NO2 sensor head used a less-specific electrochemical sensor that was cross-reactive to atmospheric ozone. This created difficulties in obtaining accurate measurements and customers would often need to use a second handheld monitor to simultaneously measure ozone. The release of this NO2 sensor head that uses a sensor with an O3 filtering layer greatly improves usability.

Full list of technical information and specifications for all Aeroqual sensors

Nitrogen Dioxide Information

This sensor head will be a direct fit onto any Series-200, Series-300, Series-500 or Ranger 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  monitor this sensor will be a direct fit for your current monitor.  

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, Ranger 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