The SUP-DM2800 membrane method dissolved oxygen meter uses the membrane method to measure dissolved oxygen, using imported components and dissolved oxygen membrane heads, based on the latest polarographic analysis technology, advanced production processes, and surface mounting technology. By utilizing this series of advanced analytical techniques, we ensure the long-term stability, reliability, and accuracy of the instrument. It has functions such as Chinese menu style operation and 485 communication. This product is widely used for dissolved oxygen monitoring in industrial fields such as sewage treatment aeration tanks, water plants, water stations, surface water, and aquaculture. The configured waterproof high-performance controller can humanize the data measured by the sensor. Users can also configure and calibrate the interface of the controller to achieve 4-20mA analog output. Implement functions such as relay control and digital communication.