Advantages of Catalytic Gas Detection
Relatively low cost
Accurate and linear over sensor detection range relative to calibration gas
Broad band sensor
Long history, proven technology
Limitations of Catalytic Gas Detection
Unable to identify type of gas detected
Requires sufficient O2 to support operating principle
High power consumption
Not fail safe - Poisoned by: sulfurs, silicones, Phosphors & leads - Inhibited by: chlorinated & fluorinated hydrocarbons
Combustible gas readings may not reflect the true concentration of a combustible gas hazard.