Dissolved Oxygen Detector plays a crucial role in aquatic ecosystems, ensuring the survival of marine life. If water lacks sufficient oxygen, fish and other organisms struggle to survive. Additionally, factors like temperature and pollution significantly impact oxygen levels. For example, warm water holds less oxygen, making it harder for aquatic life to thrive. Moreover, excessive nutrients from agricultural runoff can cause oxygen depletion, leading to dead zones. To maintain healthy water quality, industries and environmental agencies must monitor oxygen levels regularly. After all, proper aeration and pollution control improve aquatic health. Consequently, understanding Dissolved Oxygen remains essential for environmental sustainability.