Milwaukee MA841 Dissolved Oxygen Membrane Kit - 5-Pack for MA840 Probe TDS electrode Insert a new Seychelle pH2O

Insert a new Seychelle pH2O replacement filter

Chrome finishFlip-up handle for continuous usePush down handle for water on demand

rugged device that calibrates easily

Engineered in Vancouver

Sensor stability: ±2% change per year (in first two years)

Milwaukee MA841 Dissolved Oxygen Membrane Kit - 5-Pack for MA840 Probe TDS electrode Insert a new Seychelle pH2OReplacement Dissolved Oxygen Membranes for MA840 Polarographic Probe The Milwaukee MA841 is a professional grade replacement membrane kit designed for the MA840 Polarographic Dissolved Oxygen Probe used with the MW600, SMS600, and Mi605 Dissolved Oxygen Meters. This 5 pack ensures you have spare membranes on hand for routine maintenance and optimal DO measurement accuracy. Key Features: PTFE Membrane Technology: Oxygen permeable