IQ SensorNet FDO® Dissolved Oxygen Probes


Optical Dissolved Oxygen probe for IQ SensorNet systems



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The FDO is a luminescence-based, optical DO sensor for the IQ SensorNet process monitoring system. The FDO is a reliable, proven, long-term solution for continuous DO monitoring that can help optimize your aeration system and lower energy costs. Replaceable sensor cap provides a longer life and simple maintenance. A standard sensor cap (SC-FDO 700) is provided for typical applications. A fast response cap (SC-FDO 701) is available for highly dynamic environments. The FDO is a good choice for process control of activated sludge aeration to provide optimal conditions for nitrification and minimizing energy usage.

  • No electrodes or electrolyte or calibration required
  • 45 degree angle sensor cap eliminates over-estimate of DO due to bubbles bursting on the sensor cap
  • Options for seawater, freshwater and Class 1, Division 2 applications
  • Intelligent sensor cap; factory calibration data is automatically uploaded
  • Extremely long sensor cap life
  • 2-year warranty on probe and SC-FDO 700 sensor cap, 6-month warranty on SC-FDO 701 sensor cap
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