Carbon Monoxide Sensor

  • Sale
  • $85.00
  • Regular price $125.00

Brand: (varies based on supply chain) 
Availability: Usually in stock
Compatible: FD-90A-CO, FD-4S, FD-4A, FD-600-COFD-G60-CO, FD-600-4GAS, FD-103-CO

This is our carbon monoxide gas sensor replacement for Forensics Detectors carbon monoxide gas detector and gas analyzer products. These are generic carbon monoxide electrochemical sensors used as the pin-to-pin replacement of the standard 4-series electrochemical CO sensors. Once replaced, please undertake the appropriate calibration and then use the detector. 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: Carbon Monoxide (CO)
  • Range: 0-1000 ppm
  • Resolution:  1 ppm
  • Expected Life: 2-3 years
  • Recommended calibration period: 6-12 months

Cross-Sensitivity Data

Gas Concentration (ppm) Output Signal
(in ppm CO )
Carbon Monoxide 500 500
Hydrogen Sulfide 15 0.5
Sulfur Dioxide 10 -0.1
Nitric Oxide 50 -3.0
Nitrogen Dioxide 10 -0.3
Ammonia 50 -0.5
Hydrogen 100 8.5
Ethylene 100 11.5
Chlorine 15 0.0
Ethanol 200 < 1.0