Online digital IQ sensor for connection to the IQ Sensor Net 

WTW FDO 700 Digital IQ Sensors for Dissolved Oxygen

Calibration-free, reliable, DIN compliant - the optical FDO® oxygen sensors for the IQ Sensor Net to regulate biological cleaning steps.

  • Features
  • Models
  • Documents
  • Calibration and flow free
  • Insensitive to air bubbles
  • Low usage costs

FDO® sensors are the perfect solution for measuring dissolved oxygen. In addition to being free of calibration and flow, with their 45° membrane, they are also insensitive to air bubbles. Therefore, you will not require any additional installation equipment. The robust design of this sensors allows the use with an overpressure of up to 10 bar. The special membrane has a unique stability and thus ensures stable measured values.

The sea water model (FDO® 700 IQ SW) is optimized for use in special media: All wetted parts are made of titanium and plastic and are therefore extremely resistant to corrosion.

FDO® 700 IQ

Optical O2 sensor for connection to the IQ Sensor Net. (Please order cable separately)
Order No.: 201650

FDO® 701 IQ

Similar to FDO® 700 IQ, but with a faster response time
Order No.: 201660

FDO® 700 IQ SW

Similar to FDO® 700 IQ, but as sea water model with plastic arming (POM)
Order No.: 201652

FDO® 701 IQ SW

Similar to FDO® 700 IQ SW, but with a faster response time
Order No.: 201653