The Milwaukee MA840 is a polarographic replacement probe for the MW600 Dissolved Oxygen meter.The refillable polarographic probe has an oxygen-permeable polytetrafluroethylene (PTFE) membrane sensor for measuring dissolved oxygen (DO) levels in aqueous solutions.The probe uses a platinum cathode and a silver chloride anode which the MW600 meter polarizes so that oxygen passing through the membrane can be measured to produce stable, accurate readings.DESIGN FEATURESReinforced plastic body for durabilityBuilt in temperature sensor to achieve thermal equilibrium between the sensor and the sample for more accurate reading25,4cm long with a tip that tapers from 1-1/2" to 3/4" in diameter3m cable with a 7-pin DIN connector for attaching to the meter

The Milwaukee MA860 is a Galvanic replacement probe for the MW605 MAX Dissolved Oxygen meter.The refillable Galvanic probe has an oxygen-permeable polytetrafluroethylene (PTFE) membrane sensor for measuring dissolved oxygen (DO) levels in aqueous solutions and a built in temperature sensor.The probe uses a silver cathode and a zinc anode.The body is made of PP and ABS.DESIGN FEATURESReinforced plastic PP, ABS for durabilityBuilt in temperature sensor to achieve thermal equilibrium between the sensor and the sample for more accurate reading160 mm long with a tip that tapers from 1-1/2" to 3/4" in diameter3.0 m cable with a 7-pin DIN connector for attaching to the meter

The Milwaukee MA861 Dissolved Oxygen Membranes are compatible with the MA860 Galvanic Dissolved Oxygen Probe used on the MW605 MAX Dissolved Oxygen Meter.DESIGN FEATURESOxygen-permeable polytetrafluroethylene (PTFE) membrane sensorEasy to fill with MA9072S Oxygen Electrolyte SolutionIncludes membranes and 5x o-rings