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TR250Z Oxygen Sensor

TR250Z 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 or replacement. The sensor 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-0150 25% Oxygen Sensor with Mount Shield

CM-0134-WT 25% Oxygen Sensor with Tube Cap

CM-0160 95% Oxygen Sensor

CM-0161 95% Oxygen Sensor with Mount Shield

CM-0160-WT 95% Oxygen Sensor with Tube Cap

  • 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)
  • Pressure Range: 2 to 3,000 mbar


  • 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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