Portable Dissolved Oxygen Meter Lutron DO-5519 is a professional-grade DO Meter, Dissolved Oxygen Meter, and Dissolved Oxygen Analyzer designed for accurate measurement of dissolved oxygen and temperature in water. This Portable Dissolved Oxygen Meter features a heavy-duty DO probe compatible with standard BOD bottles, making it ideal for laboratory, environmental, aquaculture, and field applications. Equipped with a microprocessor-based circuit, the Lutron DO-5519 delivers high accuracy and reliable performance. The instrument supports both manual and automatic data logging with flexible sampling intervals and can store up to 1,600 readings, making it an efficient solution for water quality monitoring and dissolved oxygen analysis. Applications: – Water conditioning, Aquarium, Schools & Colleges, Medical research, Agriculture, Fish hatcheries, Laboratory, Mining industry etc.