Adaptable to various industrial environments, it operates stably in high temperatures, high humidity, or environments with strong electromagnetic interference. Specialized protective design and anti-interference technology ensure accurate oxygen content measurement in complex and harsh conditions, guaranteeing safety and stability in the production process. The SSI oxygen probe is a high-precision oxygen concentration sensor widely used in industrial process control and laboratory applications, particularly in industries such as heat treatment, metallurgy, chemicals, and automotive manufacturing. Its core principle is based on the properties of zirconia solid dielectric battery, determining oxygen concentration by measuring the difference in oxygen partial pressure between the inner and outer sides at high temperatures.