Boasts a wide oxygen content measurement range, catering to the diverse requirements of different application scenarios for oxygen content detection. Accurately measures from extremely low oxygen content environments to high concentration oxygen content environments, eliminating the need for frequent probe replacement with different ranges, providing great convenience to users. It features excellent corrosion and wear resistance, ensuring long-term stable operation in harsh industrial environments, reducing the cost increase and downtime associated with frequent probe replacement, and enhancing production efficiency.