Nitrogen Dioxide Sensor

  • Sale
  • $165.00
  • Regular price $265.00

Brand: (varies based on supply chain) 
Availability: 3 week lead time
Compatible: FD-90A-NO2

These are our replacement NO2 gas sensors for Forensics Detectors gas detector and gas analyzer products. These are generic sensors used as the pin-to-pin replacement of the standard 4-series electrochemical NO2 sensors. Once replaced, please undertake the appropriate calibration. An alternative is to send us your gas detector unit. Purchase the replacement gas sensor and the gas detector calibration service. Once received, we will replace the sensor for FREE and send the gas detector back to you with a new calibration certificate.


  • Technology: Electrochemical cell type
  • Gas: Nitrogen Dioxide (NO2)
  • Range: 0-20 ppm
  • Resolution: 0.1 ppm
  • Expected Life: 2-3 years
  • Recommended calibration period: 6-12 months

Cross-Sensitivity Data

Gas Concentration (ppm) Output Signal
(in ppm NO2 )
Nitrogen Dioxide 10 10
Hydrogen Sulfide 15 < 1.0
Carbon Monoxide 300 < 1.0
Nitric Oxide 35 0.0
Chlorine 1 0.6
Sulfur Dioxide 5 -5.0