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
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