D.O. Dissolved Oxygen Pen
Measures dissolved oxygen to determine water quality in environmental testing, labs, industrial and municipal waste water, aquariums, and fish hatcheries. Designed for simple, one-handed operation with automatic temperature compensation and calibration to air.
The polarographic probe has a built-in temperature sensor and easy-to-replace, pop-off probe heads. Simultaneously displays dissolved oxygen and temperature readings. Temperature range: 32° F to 122° F (0° C to 50° C). IP67 water-proof.
Comes ready to use in a soft carrying case with belt loop, two spare probe heads, electrolyte, and four AAA
batteries (included).