Top 20 Best Selling Dissolved Oxygen Meters & Accessories Water Quality & Instrumentation (2019)




Milwaukee MA841 Dissolved Oxygen Spare Membrane For use with All Dissolved O2 Meter is used in a number of applications. ... more info

The Hanna Instruments HI 9146-04 Oxy-Check is a dissolved oxygen (DO) meter for aquaculture applications, with a backlit LCD, a galvanic probe with 4m cable, and a water-resistant case to provide protection in the field. The meter has automatic temperatu ... more info


It's designed for aquaculture applications. This unit is unique among our family of DO meters as it is supplied with a galvanic probe. Unlike polarographic probes, galvanic DO probes require no conditioning time. When you need to measure multiple samples ... more info


The Milwaukee MW600 is a portable dissolved oxygen (DO) meter for educational, aquaculture, water analysis, and environmental analysis applications, with an LCD screen and polarographic probe with 3m cable and screw-on cap membrane. The meter has two-po ... more info



The YSI 55 instrument is a handheld dissolved oxygen (DO) meter for field use, with a backlit LCD to enable reading in dark or dimly lit areas, and probe that is a non-detachable polarographic sensor, with a 12’ cable. The probe body has stainless steel ... more info

These kits combine accuracy and reliability with simplified methodology that is not available in other field test products. Unique vacuum-sealed test ampules contain premeasured aliquots of reagent and are self-filling. Just immerse the ampule in the wate ... more info



The Hanna Instruments HI 98186-01 is a portable microprocessor-based dissolved oxygen and temperature meter to help achieve accurate results in the lab and in the field. The meter includes an internal barometer and thermometer, and can calculate biochemi ... more info

The Milwaukee AQ600 dissolved oxygen (DO) meter kit is a portable dissolved oxygen (DO) meter for educational, aquaculture, water analysis, and environmental analysis applications, with an LCD screen and polarographic probe with 3m cable and screw-on ca ... more info



Recall Min/Max/Average readings. Data Hold. Built-in RS-232 PC serial interface with optional data acquisition software and data logger. Auto power off saves battery life.. ... more info


K-7404 dissolved ozone test kits are the quickest and least expensive way to measure your dissolved ozone levels. They can be used as a stand-alone kit, or as a calibration standard for your electronic dissolved ozone monitors. ... more info


Milwaukee MA9071 Oxygen Electrolyte solution (220ml) for SM600 ... more info

The Hanna Instruments HI 9142 Dissolved Oxygen Meter provides a waterproof oxygen meter with easy calibration and maximum durability. Made from reinforced plastic, this meter is highly durable and the polarographic probe (HI 76407/4) includes a 4 m (13’ ... more info




The YSI ProODO 4m Field Kit has a dissolved oxygen (DO) meter that uses an optical, luminescent-based technology and has direct salinity and altitude compensation, one-point DO calibration (or two-point with a 0% value), one-point barometer calibration ... more info

The YSI 550A-12CC instrument is a dissolved oxygen (DO) and temperature meter for measuring DO in fresh, sea, or polluted water in the field, with a 12’ cable-probe assembly and a backlit LCD to enable reading in dark or dimly lit areas. This microproces ... more info


Milwaukee MA9070 Zero Oxygen Solution (220ml) for SM600 ... more info


Contains 30 refill ampules for the CHEMetrics Dissolved Oxygen Water Test Kit (#652750). ... more info

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