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T-ORP Probe

T-ORP sensor

The T-ORP probe allows stable and precise measurements of redox potential of water by being directly immersed in the medium or installed in a measuring cell. The high-quality REDOX electrode features a porous, dirt-insensitive high-density polyethylene (HDPE) diaphragm, making it the ideal sensor for wastewater applications.

T-ORP probe works with TriBox 3 and TriBox Mini controllers and stores calibration data in memory for a "plug and play" installation.

Available with a fixed cable of 2 or 10 meters and M12 connector. Possible cable extensions of 0.3 m, 2 m, 10 m and 25 m.

The operating status is indicated by an LED in the upper part of the sensor, making it easy to visually identify the correct operation of the system when it is installed on a measurement board.

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Measurement principle

The T-ORP digital probe works with TriBox Mini and TriBox 3 transmitters.
Once the probe is connected, the transmitter powers the sensor, receives and uses the data. The measurements are displayed on the screen, they are recorded and can be converted to the 4-20 mA analog signal.
Interface on web browser accessible by Wifi or Ethernet.


  • Control of water / wastewater treatment
  • Regulation of coagulation and flocculation
  • Measurement of acid / base neutralization processes
  • Wastewater monitoring


  • High-quality combination electrode with annular measuring diaphragm and solid polymerized electrolyte
  • LED operating status indicator
  • Submersible probe for in situ measurements
  • FlowCell for Bypass installation
  • “Plug and play” equipment with TriBox transmitter
Measurement technologyORP Redox electrode
Measuring principleLuminescence
Measuring range-1000 ... +1000 mV
Measurement accuracy+/- 1 mV
Temperature compensationautomatic with integrated Pt1000
Response time90% of a value <60 seconds
Probe body materialsPPS PET NBR (polyphenylene sulfide / polyethylene terephthalate / butadiene nitrile acrylic)
Interface and connectionRS-485 / Modbus RTU
Maximum working pressure3 bar.
Temperature of the medium / sample0 ... + 50 °C
Passage speed0,3 m/s
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