The lifespan of an oxygen probe depends on its working environment and maintenance, typically ranging from 18 to 24 months, suitable for most industrial settings. In special environments, such as high-temperature or corrosive conditions, the lifespan may be reduced. The SSI oxygen probe is applicable in heat treatment and carbon potential control, carburizing, carbonitriding, bright quenching processes, combustion control for boilers and heating furnaces, production of engine, gears, bearings, and other components, as well as precision manufacturing and material processing. The installation and maintenance of the oxygen probe significantly impact its performance and lifespan. The installation location should avoid areas near the dripping point of the infiltrant, fans, and high-vibration zones. Regular maintenance, including cleaning and calibration, is essential to ensure measurement accuracy.