Best Oxygen Meter Walgreens

RCYAGO Dissolved Oxygen Meter with DO Probe DO Meter Water Quality Monitor Freshwater Aquarium Test Kit Digital Dissolved Meter Portable Pen Type Meter 0.0-20.0mg/L ±0.3mg/L

Dissolved Oxygen Meters: Oxygen meter comes with electrolyte, you can test water DO(dissolved oxygen) and temperature(℃/℉) Facilitate the user to....
Temperature Compensation: DO meter enjoys less than 30 seconds fast testing, 0℃ - 40℃ ATC Function(automatic temperature compensation), and....
Easy to Operate: Freshwater aquarium test kit, portable and lightweight, is convenient to carry around and test on-site. A large LCD display with....
Test to Get The Purest Water: Compact pen-shape design, lightweight for mobility, you can test water anywhere to get the purest water..
Wide Application: Soil-free growing, aquarium, swimming pools, freshwater culture, mariculture, beverage factory, wastewater treatment plant,....

Equipped with state-of-the-art Optical DO sensor: measures dissolved oxygen level in a reliable and effortless manner.
Minimal maintenance required. No need for solution refill or frequent membrane change..
Easy auto. Calibration for saturated air and zero-oxygen.
IP67 waterproof and dust-proof structure, ideal to be used in harsh environments.
Comes with a complete meter kit, including the DO meter, 10 ft optical probe, calibration cap, and a rugged carrying case.