Hach, 5540D0C0A25N, Clark Submersion Dissolved Oxygen Sensor, 25 ft Cable

Noryl and 316 Stainless Steel Body, 7.5m Analog Cable, Three-Electrode Polarographic Clark Cell Technology, NOTE: Connector Style Only Mates to the Obsolete GLI D53 Analyzer
Replaceable Membrane Cartridge
Model 5500-series dissolved oxygen oxygen sensors feature a replaceable cartridge, simplifying the delicate and time-consuming task of installing a new membrane. Each cartridge assembly includes a pre-installed,
semi-permeable membrane, electrolyte, and electrodes.
Rugged, Foul-Resistant Membrane
An extremely durable 50 micron thick hydrophobic membrane ensures that the D.O. sensor resists fouling and withstands the harsh environments found in wastewater treatment plants.
Complete Encapsulation
Fully-encapsulated construction protects the sensor’s built-in electronics from moisture and humidity problems, extending the working life of the sensor.
Versatile Mounting Styles
The handrail and flotation unique stainless steel swivel/pivot/pipe clamp assembly,
enabling easy sensor positioning and removal from the process. The flotation hardware has a ball float assembly that continually bobs up and down to gently scrub the sensor membrane. The submersion hardware enables submerging the sensor to a desired depth in the basin.
Durable construction to extend sensor life