1. Creative Appearance: The unique music note - shaped design adds a sense of fun and art to the aquarium. While realizing the detection function, it can also be used as a unique decoration in the aquarium. 2. Sensitive Detection: It is sensitive to changes in carbon dioxide concentration and can timely and accurately detect the fluctuations of carbon dioxide concentration in the aquatic plant tank, helping users adjust the gas supply in a timely manner. 3. Advantages of Glass Material: Made of high - quality glass, it has good corrosion resistance and transparency, ensuring the accuracy of the detection results and clearly showing the detection process.