nitrogen dioxide gas sensor / nitrogen monoxide / UV-DOAS / miniature



  • Gas type:

    nitrogen dioxide, nitrogen monoxide

  • Technology:


  • Other characteristics:

    miniature, maintenance-free, RS232, RS485


Based on high-precision ultraviolet differential absorption spectroscopy gas analysis principle( UV-DOAS), our Gasboard-2201 NOx bench adopts flashing xenon lamp as light source. When the light is transmitted in the measured gas, the intensity of the differential absorption characteristic produced by each molecule in the gas in different bands is used to derive the gas concentration & type. Based on the special design and a unique algorithm, the long path is returned to the gas chamber multiple times, the NOx bench detector can get strong absorption signal to support high sensitivity. With the advantages such as long service life and good stability, it can accurately measure the engine emission gas concentration of NO, NO2 and conforms the national standard GB 3847 and GB 18285 detection requirements.

• Advanced UV DOAS working principle for ultra low range monitoring
• Direct measurement of NO, NO2,NO need of NOx converter
• High measurement accuracy
• Good stability, strong anti-interference, not affected by moisture & vibration
• Sensor modular design, easy to integrate & maintenance
• Automatic temperature and pressure compensation

Range:NO: 0~100~2000ppm
Range:NO: NO2:0~500~5000ppm
Measurement range can be customized
Linear Error:<±2% FS
Zero/Span drift:<2.5% FS/ 7days

Motor vehicle exhaust emission test
Non-road diesel engine emission test
Small general purpose engine emissions detection
Production consistency test and emission test
Type Approval for Mobile Machinery Diesel Engines