TR250Z 25% or 95% Oxygen Sensor

TR250Z 25% or 95% Oxygen Sensor
Regular price $499.00 USD

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The TR250Z is a control board that provides multiple analog linear outputs of oxygen concentrations. It is designed to be rugged, maintenance-free and can be calibrated in air of any known oxygen concentration.

The Fujikura 25% or 95% oxygen sensor used with the TR250Z is a zirconium based, current limiting sensor. This style of sensor has many advantages over other ways of measuring oxygen. For example, it does not require periodic calibration and will last at 3 or more years under normal conditions.


  • 25% or 95% Oxygen levels
  • Non-Consumptive Technology
  • High accuracy
  • Calibrate in fresh air or any known O2 concentration
  • Linear or RS485-MODBUS output of measured oxygen content


  • CM-0134 25% Oxygen Sensor
  • CM-0160 95% Oxygen Sensor

Watch the Video

  • Measurement Range: 0.1–25% or 0.1-95% Oxygen
  • Sensing Method: Zirconium dioxide (ZrO2)
  • Diffusion Response Time: 4 seconds max diffusion time
  • Sensitivity: ± 20 ppm ± 1 % of measured value
  • Accuracy: ± 0.5% (2% full scale)
  • Temperature Range: -10 to 50C*
  • Pressure Range: 2 to 3,000 mbar*

* Sensor only. Temperature and pressure limits dependent on mounting options.


  • 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


  • 90 days

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

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"Swift response and shipment. The product is easy to setup and use. It is just what I was looking for."

- Shima Tomohiro

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