Starting at $4,631.91
  • Usually ships in 2-3 weeks



  • Measurement range
    • 0.004 to 30mg/l
    • 0.05 to 330%SAT
    • 0.1 to 700hPa
  • Material
    • Sensor shaft: Stainless steel 1.4435 (AISI 316L)
    • Process seal: FKM (USP<87>, <88> Class VI and FDA)
    • Process seal for Ex versions: FKM (not FDA-compliant)
    • Seals/O-rings: EPDM, FFKM (USP<87>, <88> Class VI and FDA)
    • Spot cap: Stainless steel 1.4435 (AISI 316L), titanium or hastelloy
    • Spot layer: Silicone (USP<87>, <88> Class VI and FDA)
  • 1 to 140°C (32 to 284°F) process temperature
  • 0.02 to 13bar abs (0 to 190psi) process pressure


The E+H Memosens COS81E Digital Optical Oxygen Sensor is designed according to EHEDG and ASME BPE. The sensor can be precalibrated in a lab and swapped into a process with plug and play. It does not need polarization time and is immediately ready to measure. A built-in reference LED compensates the aging of the measuring LED.

The sensor can be used in process applications as well as benchtop fermenters, and includes a standard process connection Pg 13.5 that allows for the possibility of installation in standard pH assemblies. Memosens technology provides for extended data storage for predictive maintenance and enhanced IloT services.


  • Fermentation
  • Drinking water production
  • Inertization
  • Monitoring of explosive atmospheres with an O2 concentration of ≥2%Vol
  • Quality control in the food industry