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HomeProductsProduct categoriesSensor technologyDigital IQ sensors (online) > IQ electro-chemical oxygen sensors

Digital electro-chemical IQ sensors for dissolved oxygen

WTW sensors digital electro-chemical IQ oxygen sensors
WTW sensors digital electro-chemical IQ oxygen sensors TriOxmatic® 700 IQ
WTW sensors digital electro-chemical IQ oxygen sensors TriOxmatic® 700 IQ SW

TriOxmatic® IQ: Reliable and proven digital electro-chemical oxygen sensors with 3 electrode system (ECDO) for precise and accurate measurements

  • Low investment costs
  • No running in, no long-term drift - stable from the beginning to the end
  • Self-diagnosis system SensReg/SensLeck by means of 3 electrode system

The electro-chemical sensors are known for their high accuracy - from the beginning. Their teflon membrane makes them extremely insensitive to biological deposits. Therefore, in most cases, you will not need an additional cleaning unit.

Also, the membrane - just like the electrolyte consumption - is monitored continuously. Our self-diagnosis system SensLeck and SensReg show occurring errors automatically.

The sea water model is optimized for the use in special media: All wetted parts consist of titanium and plastic and are therefore extremely corrosion-resistant.

Furthermore, if you want, you will find a sensor with a faster response time or for the measurement of trace oxygen.


Model Description Order no.
TriOxmatic® 700 IQ Universal oxygen sensor for the measurement and regulation of oxygen input in wastewater treatment plants (please order cables separately) 201640
TriOxmatic® 700 IQ SW Like TriOxmatic® 700 IQ, but as a sea water model 201641
TriOxmatic® 701 IQ Like TriOxmatic® 700 IQ , but with faster response times 201644
TriOxmatic® 702 IQ Like TriOxmatic® 700 IQ, but as a trace sensor (ppb area) suitable for pure or boiler feed water 201646

Technical Data

* SW: Sensor as sea water model (with plastic arming (POM)
Digital sensor TriOxmatic® 700 IQ (SW) TriOxmatic® 701 IQ TriOxmatic® 702 IQ
Measuring range
O2 concentration
O2 saturation
0.0 ... 60.0 mg/l
0...600 %
0.00 ... 20.00 mg/l
0.0 ... 60.0 mg/l
0.0...200.0 %
0...600 %
0 ... 2,000 µg/l
0.00 ... 10.00 mg/l
0...110 %
O2 concentration
O2 saturation
0.1 mg/l
1 %
0.01 mg/l
0.1 mg/l
0.1 %
1 %
0.001 mg/l
0.01 mg/l
0.1 %
Response time at 25 °C t90: 180 s t90: 30 s
t99: 90 s
t90: 30 s
t99: 110 s
Temperature measurement Integrated NTC, -5 … 60 °C _H _H
Operating temperature 0 … 60 °C _H _H
Permissible overpressure 10 bar _H _H


Model Description Order no.
ZBK 600 Accessories kit for TriOxmatic® 700 IQ 202620
ZBK 25i Accessories kit for TriOxmatic® 701/702 IQ 202621
WP 600/2 Replacement membrane heads for TriOxmatic® 700 IQ 202850
WP 25i/2 Replacement membrance heads for TriOxmatic® 701/702 IQ 202852
SF 300 Cathode cleaner for TriOxmatic® sensors 203680
RL-AG/Oxi 50 ml cleaning solution for TriOxmatic®sensors 205200
ELY/A Electrolyte solution for TriOxmatic®sensors 205212


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