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LOX-O2-F UV Flux 25% Oxygen Flow Through Sensor

LOX-02-F UV Flux  25% Oxygen Smart Flow Through Sensor l CO2Meter
Regular price ¥21,090 Sale price

Compare at ¥28,600

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The LOX-O2-F: UV Flux 25% Oxygen Flow Through Sensor (formerly known as OX-0055) measures ambient oxygen levels using the principle of fluorescence quenching by oxygen. This provides the benefits of lower power requirements and a longer lifetime. 


  • Flow-through housing for easy sample gas management
  • Fast response T90 <10s 
  • Works in vacuum and high oxygen concentrations
  • RoHs & REACH compliant


  • LOX-O2-F Sensor Only – for integration into high-volume OEM products.
  • CM-42990 MX Board Same functionality as the development kit without USB cable or software.
  • CM-42991 Development Kit – Easy to use, simply plug the MX Board into your PC via the included serial UART to USB cable. Use our free GasLab® software to measure and graph oxygen, barometric pressure, temperature, and % relative humidity. 


  • Measuring Gas: Oxygen
  • Measurement Range: 0 - 25% O2
  • Sensing Method: Fluorescence quenching by oxygen
  • Measurement Interval: 1 Sample/second
  • Oxygen Pressure Range: 0 — 300mbar ppO2
  • Response Time: T90 < 10s
  • Warm-Up Time: < 60 Seconds at 72°F (22°C)
  • Accuracy: Better than 2% at full scale
  • Humidity: 0-99% RH (non-condensing)
  • Resolution: 0.10% / 0.1mbar
  • Temperature Accuracy: +/- 2 degrees C
  • Pressure: ±5mbar
  • Operating Temperature: -30°C to +60°C
  • Barometric Pressure Range: 500 to 1200mbar
  • Lifetime: > 5 years

Electrical / Mechanical

  • Supply voltage: 4.5 - 5.5 VDC
  • Supply current: <7.5mA (streaming one sample per second)
  • Output type: 3.3V TTL level USART
  • Interface: UART or analog


  • See CO2Meter Terms and Conditions. 

SST Oxygen Sensor Datasheet Data Sheet (pdf)

SST Sensor Manual Operation Guide Sensor Manual (pdf)

MX Board Manual MX Board Manual (pdf)

Free Easy-to-use GasLab® Software 

This device uses GasLab® software for setup, calibration, data logging, and real-time data analysis. GasLab® makes it easy to export data into a .CSV file that can be imported into any industry-standard software or spreadsheet. GasLab® runs on Windows XP or higher, and free to use with our products.

Download Latest Software Here

System Requirements for Data Logging or Changing Defaults

  • Windows XP SP2 or newer
  • Microsoft .Net 3.5 Runtime Libraries. 

Gas Sensor Development Kit -  designed to seamlessly integrate with CO2Meter select gas sensors and provides customers with built-in pins for an easy drop-in solution. Also includes our free Gaslab data logging software.

Micro-Pump Kit includes all the tools you need to utilize the tube-cap adapters as part of a sampling sensor system.

Nafion Tubing is a highly selective, semi-permeable membrane to water vapor. If gases inside Nafion tubing are wetter than gases surrounding the tubing, drying will occur. If the surrounding gases are wetter, humidification will occur.

Micro Gas Sampling Pumps provide a constant flow of air across the sensor with a tube cap - perfect for bench-top testing of sensors for closed-loop sampling applications.

  • Data Sheets

  • Manuals

  • Technical Documents

  • Videos

  • Additional Resources

  • Case Studies

Customer Reviews

Based on 1 review
Jaime Ballester
Never arrived

Wish I could review but Fedex did not deliver or something else happened. But item never reached me. I was setting out on a BBQ looking towards the garage when a notification arrived on Easter Sunday saying item was left in garage. Really? This may be a FEDEX problem but for sure I am very disappointed that I paid full price and got zero. I want my money back.

Dear Jaime,

We appreciate your overall feedback in regards to your experience when purchasing gas detection monitoring and analysis solutions from CO2Meter.com. We apologize for the unfortunate circumstance with FedEx and not being able to ship your device in a timely manor, unfortunately once the product leaves our warehouse it is out of CO2Meter control via the shipping carrier.

We know during this time it has also provided many delays across various carriers and protocols. We want to ensure moving forward that you recognize that we take your feedback into deep consideration with shipping procedures and future customer experiences.

We hope you will consider altering your product review in regards to our most recent discussion.

We appreciate your insight and feedback, Thank you for choosing CO2Meter.

CO2Meter Team

"Easy to install, easy to set up, and easy calibration - just what I was looking for."

- Phillip Farrar
Water Plant Superintendent

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