Ammonia Sensor

  • Sale
  • $165.00
  • Regular price $265.00

Brand: (varies based on supply chain) 
Availability: 3 week lead time
Compatible: FD-90A-NH3, FD-G60-NH3, FD-NH3000, FD-600-NH3

This is our replacement ammonia gas sensor for Forensics Detectors' ammonia gas detector products.  These are our NH3 sensors used as pin-to-pin replacement of the standard 4-series electrochemical 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: Ammonia (NH3)
  • Range: 0-100ppm
  • Resolution: 0.1ppm
  • Expected life: 2-3 years
  • Recommended calibration period: 6-12 months

Cross Sensitivity Table

Gas Concentration (ppm) Output Signal
(in ppm NH3)
Ammonia 50 50
Hydrogen Sulfide 25 22.0
Carbon Dioxide 5,000 0.0
Carbon Monoxide 100 0.0
Hydrogen 1,000 0.0
Isobutylene 100 0.0
Ethanol 200 < 1.0