The household oxygen generators developed by medical equipment enterprises need to precisely control the concentration range of the produced oxygen to ensure the safety and effectiveness of use for users. It has selected an online oxygen detector that supports RS485 and 4-20mA signal output. This device can monitor the oxygen concentration around the oxygen generator in real time, and the values are clearly displayed on the screen. The RS485 signal facilitates the connection of data to the enterprise's monitoring and management system, enabling remote and centralized data management. The 4-20mA analog signal can be adapted to the on-site automatic control equipment, enabling the concentration monitoring to be linked with the operation regulation of the oxygen generator. Through this detector, enterprises can precisely control the oxygen output concentration of the oxygen generator, building a solid defense line for product quality and user safety. It also demonstrates the outstanding performance of this online oxygen detector in industrial-grade signal compatibility and precise monitoring.