Waterproof Galvanic Dissolved Oxygen Meter

The Portable Oximeter is one of Milwaukee's most popular meters with its reliable and fast operation as well as its 0.0 to 45.00 Mg/l (ppm) accuracy.

The Milwaukee MW605 MAX DO Meter is widely cited in environmental monitoring and aquaculture studies for its reliable dissolved oxygen readings. Independent reviews from lab technicians, aquaculture specialists, and educators consistently highlight its accuracy, portability, and ease of use. Customers often use this meter in field research, fish farming, koi pond management, water treatment monitoring, and educational demonstrations, praising its fast response and dependable measurements even in challenging environments.

PRODUCT OVERVIEW

The Portable Oximeter Milwaukee MW605 MAX DO Meter is preferred by people looking for lab-level accuracy without the cost. The Milwaukee DO Meter is popular with everyone from field biologists, educators, fish farmers, koi pond owners, water treatment plants and labs.

DESIGN FEATURES

• Fast, easy-to-read results with large digital LCD readout.
• Galvanic probe means no conditioning time.
• Repeatable, accuracy to ±1.5% of reading.
• Water Proof IP 67 Rated.
• Lightweight and portable.
• Simple 1 or 2 % saturation calibration points at 100% (water-saturated air) and 0% (zero oxygen solution).
• Dedicated GLP key to store and recall data on system status.
• Available log space for up to 1000 records.
• Logged data export via USB cable.
• Altitude and Salinity compensation.
• Automatic temperature compensation °F & °C.
• Uses MA860 (included) reinforced Galvanic probe with an oxygen-permeable polytetrafluroethylene (PTFE) membrane sensor.
• 2 O-rings, membranes and one protective cap included.
• 10 feet probe cable for extra flexibility when testing.
• 3 x 1.5 volt alkaline AA battery (battery included) approx. 200 hours of battery life with continuous use with low battery warning.

CARE AND MAINTENANCE

Probe Maintenance:

• The silver cathode should always be bright and untarnished. If it is tarnished or stained, the cathode should be cleaned gently with a lint-free cloth.
• Rinse the probe with deionized or distilled water.
• Replace the membrane cap using fresh electrolytes.
• Recalibrate meter.

Membrane Maintenance:

• For accurate and stable measurements, the perfect condition of the membrane surface is needed. Protect the thin membrane from scratches, abrasion or contact with solids.
• If no measurements are taken for a few hours, protect the membrane with the plastic protective cap.
• If fouled, rinse it carefully with distilled or deionized water. If damaged, replace the membrane cap.

Note: Change the membrane every 8 weeks or more frequently if used in a specially fouling environment. Check and replace the electrolyte fill solution every 4 weeks.

Storage:

After taking measurements, switch the meter off and clean the probe before storage. When not in use the probe should be stored with the plastic cap on.

For short-term storage, the probe can also be stored in a beaker of deionized water with the protective plastic cap removed.

For long-term storage, the probe should be stored dry:

1. Disconnect the probe from the meter.
2. Unscrew the membrane cap.
3. Remove any electrolyte solution from the cap.
4. Rinse the probe anode/cathode assembly with distilled water and blot dry.
5. Screw the membrane cap onto the probe until the membrane cap is hand-tight.

Q&A

What is the accuracy of the Milwaukee MW605 MAX DO Meter?

The meter provides readings accurate to ±1.5% of the reading, ensuring reliable dissolved oxygen measurements for lab and field use.

How often should the membrane be replaced?

The membrane should be replaced every 8 weeks or more frequently if used in environments prone to fouling.

Can the meter be used in saltwater?

Yes, the meter has built-in salinity compensation to provide accurate readings in both freshwater and saltwater environments.

How long does the battery last?

Using 3 x 1.5V AA batteries, the meter provides approximately 200 hours of continuous use with a low battery warning included.

Is the probe waterproof?

Yes, the probe and meter are rated IP67, making them resistant to water immersion and suitable for field and laboratory use.