Accurate dissolved oxygen measurement is essential in water quality monitoring, environmental research, aquaculture, laboratories, and industrial applications. The XDO-111 Portable Dissolved Oxygen Meter is designed to provide precise dissolved oxygen measurements in a compact and convenient package. High-Precision Dissolved Oxygen Measurement The XDO-111 offers a wide measuring range of 0.01 μg/L to 20 mg/L, with an accuracy of ±0.1 μg/L...