1. Convenient Hanging: The round ball hanging design allows users to directly hang the detector in the appropriate position in the aquarium. There is no need to install additional complex fixing devices, saving space and being convenient for installation. 2. Comprehensive Detection: The spherical shape enables the detector to perceive the carbon dioxide concentration and other parameters of the surrounding water body in all directions. The detection range is wider, and the data is more representative. 3. Clear Display: Equipped with a clear display area, it can intuitively display the detected data. Users can obtain the relevant parameter information in the aquarium at a glance, facilitating the timely grasp of the water quality situation.