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TR250Z Oxygen Sensor

TR250Z Oxygen Sensor
Regular price $499.00

POs or wholesale quantity discounts click here

The TR250Z Oxygen Level Transmitter provides multiple analog linear outputs of O2 concentrations. It is designed to be rugged, maintenance-free, and can be calibrated in normal air of any known oxygen concentration.


  • 25%  Oxygen levels
  • Non-Consumptive Technology
  • High accuracy
  • Calibrate in fresh air or any known O2 concentration
  • Automatic or Manual Calibration
  • Linear or RS485-MODBUS output of measured oxygen content


  • Measurement Range: 0 – 25% O2
  • Sensing Method: Zirconium dioxide (ZrO2)
  • Diffusion Response Time: 4 seconds max diffusion time
  • Sensitivity: ± 20 ppm ± 1 % of the measured value
  • Accuracy: ± 0.5% (2% full scale)
  • Pressure Range: 2 to 3,000 mbar
  • Operational Temperature Range: -30 C to 70 C
  • Gas Sample Temperature Range: -100 C to 250 C


  • Power Input: 24VDC ±10%
  • Current Consumption: 600 mA @ 24VDC
  • Dimensions: 3.5 x 2.75 x 0.50 inches


  • Analog: Linear 0-10V or 4-20mA
  • Digital: RS485


  • CM-0134 25% Oxygen Sensor


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

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

  • Manuals

  • Technical Documents

  • Videos

  • Additional Resources

  • Case Studies

Customer Reviews

Based on 1 review
Ismail Laher
CO2 meter

Prompt and professional service—thank you

"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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