oxygen sensor

  • CO2Meter CM-0202 (Small)Low Power, Long Life
  • Suitable for Battery-Powered Use

The ESCM-201 UV Flux Oxygen sensor measures ambient O2 levels in 0-25%. Unlike traditional electrochemical (galvanic cell) oxygen sensors, by using UV light is sensor has a lifetime measured in years instead of months. This makes it perfect for portable, medical, industrial or many other applications.

The UV Flux sensor is both oxygen pressure and temperature compensated, enabling accurate operation over a wide environmental range without the need for additional system components.

The UV Flux sensor has an advantage over other oxygen sensors that are based on the galvanic cell principle. Galvanic cell sensors are similar to a AA battery or your mobile phone battery. These types of sensors are based on electrochemical reactions that have an inevitable depletion time ranging from a few months to a couple of years. The UV Flux sensor is based on a light sensing principle that does not degrade over such a short period of time. Therefore, the UV Flux sensor is the most cost effective oxygen sensing device available.


Download ESCM-201-UV-Flux-Spec-Sheet

Download ESCM-201 UV-Flux-Manual


  • Oxygen Detection
  • Portable Equipment
  • Breathing Apparatus
  • Medical or Lab Equipment
GasLab® Software

CO2Meter GasLab_grande (Mobile)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.


  • Oxygen Measuring Range: 0-25%
  • Response Rate: T90 <30s (Typical)
  • Sampling Rate: 1 Sample/sec
  • Accuracy: Better than 2% at full scale
  • Resolution: 0.10% / 0.1mbar
  • Lifetime: > 5 years
  • Temperature Accuracy: +/- 2 degrees C
  • Operating Temperature: -30°C to +60°C
  • Barometric Pressure Range: 500 to 1200 mbar
electrical / mechanical
  • Voltage: 4.5 – 5.5 VDC
  • Current: < 6mA (streaming @ 1 Sample/sec), < 17mA Peak
  • Interface: UART
  • 90 Days


ESCM-201 uv-flux-oxygen-sensor_large (Mobile)ESCM-201 UV Flux Oxygen Sensor


CO2Meter CM-0202 (Small)







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