Overview & Features


Paired with a special interface circuit, this sensor can produce an electric current corresponding to the exhaust gas O2 concentration. This sensor can be used for control over a wide range of air-fuel ratios from precise stoichiometric control, to lean burn, to enrichment for component protection. The capability of lean measurement enables control for lean burn and diesel engines. Compared to the previous design the ZFAS-U2 wide range air-fuel sensor achieves outstanding reliability and activation speed.


  •     Accurate output over the entire measurement range
  •     Fully sealed waterproof design does not require external reference air
  •     Excellent heat resistance for improved durability
  •     Fast activation (5sec) due to monolithic heater and element structure.


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