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Inline amperometric dO2 sensor for variuos applications

Metroglas dissolved oxygen sensors provide reliable results over a broad measurement range—from 100 ppm up to 100% oxygen saturation. These low-maintenance electrodes are extremely suitable for applications in the pharmaceutical and biotechnology industries.

The inline amperometric dO2 sensor is created to high hygienic standards and withstands both clean-in-place (CIP) and sterilize-in-place (SIP) procedures. The PTFE-reinforced silicone membrane is easy to replace, ensuring stable performance over the complete lifetime of the electrode with minimized downtimes when the membrane must be exchanged.

Designed mainly for situations like monitoring cell cultures, these inline amperometric dO2 sensors can also be used for various other applications, e.g., drinking water, wastewater, fermentation broths, beer, wine, and fruit juice production, and more.

Key Benefits

  • Stable measurement signal over the entire application time due to low drift and short response time
  • Sustainable performance over entire sensor lifetime even with regular CIP or SIP cycles
  • Reliable measurement results with the optimized design and proven materials

Technical Specifications



Measuring range

100 ppm – 100% O2



Shaft material

Stainless steel (316S), Ra  0.4 

Temperature sensor


O2 Electrolyte

Alkaline KCI solution

Temperature range

0 – 50 °C

High temperature (autoclavable)

<20 min 121°C

Max pressure during measurement

4 bar 


Shaft diameter


12 mm

Sensor connector

VarioPin VP4, PG 13.5

Output signal


Min. immersion



10 mm

Length (mm)

120, 225, 325, 360, 425



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