Trace Range Oxygen Flow-Through Cell


  • With integrated contactless optical oxygen sensor
  • For high precision measurements close to 0% O2
  • For ca. 3.2 or 4.0 mm ID tubings
  • Recommended flow rate: 20-500 mL/min
  • Works with gas (%O2) and liquids (DO)

The flow-through cells have an integrated oxygen sensor for contactless oxygen measurements of gaseous or aqueous liquid samples flowing through the cell. The cell is equipped with Luer-lock connectors on both tubing ends. The included set of Luer-lock adapters allows direct connection of tubings with ca. 3-4 mm inner diameter. With an optical fiber the flow-through cell is connected to an optical oxygen meter from PyroScience.

Trace range. Trace range versions are available for high precision measurements close to 0%O2. They offer about 5x higher resolution compared to standard range oxygen sensors. The specified measuring range is 0-10% O2, with calibration at 0% O2 and ambient air (21% O2), ensuring a straightforward calibration without the need of special calibration standards.

Easy calibration. A simple ambient air calibration can be performed with a few clicks (<1 minute for equilibrated setup). For precise oxygen measurements close to 0% we also offer easy-to-use calibration capsules (OXCAL). Simply dissolve the content of one calibration capsule in 100 ml distilled water, wait 10-15 minutes, perform the 0% calibration and start measurements with a calibrated sensor. For detailed calibration recommendations refer to the manual in the downloads tab.

Standard stock item. This item is typically in stock and small numbers can be shipped quickly. This does not apply for larger amounts, which ship with standard delivery time.

Applications. To get an overview of potential applications and to see our sensors in action, please visit our Applications site!

Please visit our accessories site for all available accessories for our contactless sensors.

Optical Fiber


  • For contactless sensor readout
  • Optical fiber core Ø = 1mm
  • Ca. 1m length
  • With ST-connector and bare fiber end
  • To measure through 0-2mm thick materials

0% O2 Calibration Capsules 


For recommended 0% O2 calibration of optical oxygen sensors. Each capsule results in 50mL calibration solution (PU=10).

Every PyroScience oxygen meter is generally compatible to this sensor. Pay attention to the correct optical fiber for contactless readout. All options can be found under accessories for contactless readout. Use the link below to get a list of all compatible meters. Select additional requirements to find the optimal meter for you and your application!



Choose the one channel oxygen meter FireSting O2 with the trace range oxygen flow through cell TROXFTC2

  • Good value
  • Ready to go lab setup


Choose the pocket oxygen meter FireSting GO2 with the trace range oxygen flow through cell TROXFTC2

  • Stand alone logging
  • With battery and display


Choose the multi-analyte FireSting pro (4 chan.) with the trace range oxygen flow through cell TROXFTC2

  • 4 freely configurable optical channels
  • + Additional pH sensor support