Milwaukee Mi605 Portable Dissolved Oxygen Meter

Milwaukee Instruments
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Milwaukee Mi605 Portable Dissolved Oxygen Meter w/ Case

Brand Name
Mfr Part #
Pkg Qty
Measurement Type
Dissolved Oxygen
Overall Height
50  millimeters
Overall Length
200  millimeters
Overall Width
85  millimeters

The Milwaukee Mi605 is a portable, microprocessor-based, dissolved oxygen (DO) meter for field applications including aquaculture, wastewater, environmental, and educational, with an LCD screen and polarographic DO probe with 3m cable and screw-on cap membrane. It has automatic calibration in saturated air and automatic temperature compensation from 0 to 50°C. It compensates salinity and altitude automatically after manual input.

Note: We ship only to the USA and Canada.

The Mi605 features a Hold button that freezes the reading on-screen, and a blinking battery symbol indicates low battery. DO meters are commonly used in water-quality testing applications.

Dissolved oxygen (DO) meters measure the amount of dissolved oxygen present in water. The amount of DO helps to determine, for example, drinking water quality, the health of lakes or streams, and aquatic organism sustainability. A probe, also called a sensor or electrode, is inserted into the sample to perform the measurement, and the results appear on the meter display. Applications include sewage and water treatment plants, pollution control, fish farms, and various types of manufacturing. Milwaukee Instruments manufactures electrochemical instrumentation and solutions for water analysis under the Milwaukee and Martini brands. The company, founded in 1989, is headquartered in Rocky Mount, NC.


Range (O2, % saturation O2, Temperature) 0.0 to 45.00 mg/L (ppm), 0.0 to 300%, 0.0 to 50.0°C / 32 to 122°F
Resolution (O2, % saturation O2, Temperature) 0.01 mg/L (ppm), 0.1%, 0.1°C
Accuracy (O2, % saturation O2, Temperature) + or - 1.5% Full Scale, + or - 1.5% Full Scale, + or - 0.5°C
Power source 9V battery (included)
Weight (with battery) 280g

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