Electro-chemical Cells Pros & Cons

Advantages of Electro-chemical Cells Gas Detectors

  • Relatively low cost
  • Sensitive to ppm concentration
  • Accurate and linear over sensor detection range
  • Typically fail safe operation

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Limitations of Electro-chemical Cells Gas Detectors

  • Cross sensitivities – response to gases other than the target gas
  • Electrolyte contamination
  • Some sensors very sensitive to humidity and temperature transients, eg: NO, ETO
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