Bosch Oxygen Sensor Features/Benefits

Bosch planar ceramic technology
Heater layer:
Ceramic sheet printed with electrical contacts and the heater pattern itself

Air duct layer:
Creates a void for reference air in the finished assembly

Sensor Layer:
Ceramic sheet with printed layers for the inner (reference air) and outer (exhaust gas) electrodes, as well as electrical contacts and a porous protective layer over the outer electrode to protect it from the corrosive effects of exhaust gases

Bosch thimble ceramic technology
Base ceramic probe of Zirconium and Yttrium:
Forms a tough base that resists cracking from mechanical and thermal shock

Patented Platinum Power Grid:
For optimized sensing, delivering best-in-class performance and maximum service life

Fine particle filter:
Prevents contamination of the electrode for longer service life

Coarse particle filter:
Protects against exhaust gas and other chemical contamination, increasing sensor performance life