Dissolved Oxygen Probe

  • DO Measurement Range Dissolved oxygen measurement range from 0 to 40 ppm
  • DO Sensor Head Precalibrated sensor head for dissolved oxygen and temperature. Plug & Play with any Datastick to yield accurate 24-bit data.
  • Universal DataStick Provides conversion of sensor signals and interactive communication for configuration, measurement, calibration and diagnostics
Product Options


The Dissolved Oxygen Probe from Thermo AquaSensors can be connected directly to a PLC (Programmable Logic Controller) to give seamless integration with industrial control systems. When attached to a computer, data can be displayed and the unit can be calibrated and customised without the need for an intermediate analyser electronics box. There is also a wide range of 'plug-and-play' communications adapters available for this dissolved oxygen probe, including Modbus? RTU, DeviceNet, Profibus, USB, CANopen or Ethernet. The pre-calibrated Dissolved Oxygen probe head uses Clark cell technology consisting of a silver reference electrode, a silver anode and a gold cathode. It can be replaced with any of the wide range of DataStick sensor heads while the system is operational, saving time and money. The dissolved oxygen probes have a rugged foul resistant membrane, a built in pre-amplifier and an integral temperature sensor to measure temperature independently. The onboard electronics of the oxygen probe are completely encapsulated and O-ring sealed for protection from humidity and moisture.

Manufactured by: Thermo Scientific
Model: Dissolved Oxygen Probe

Services offered for this product

  • Sales
  • Rental
  • Installation
  • Calibration
  • Maintenance


Municipal and industrial wastewater
- Aeration tasks
- Aerobic digesters
- Plant effluent monitoring (NPDES Permit Holders)
- Anaerobic digesters
Many applications also exist in chemical process, food and dairy, pulp and paper, and other process industries
Boiler feed water (ppb)
Pharmaceutical (ppb)
Semiconductor manufacturing (ppb)
Ultrapure water (ppb)
Power plants (ppb)


Measurement System Performance†
Range 0 to 40 ppm, 0 to 200% saturation
Resolution 0.01 ppm
Accuracy 1% of reading
Step Response Time 90% in 90 seconds
Operational Environment
Temperature Range -5 °C to 50 °C
Maximum Pressure 65 psig @ 50 °C
Maximum Flow Rate 10 ft/second
Power Requirements‡
Voltage Range 10 to 30 VDC
Maximum Power 200 mW
Typical Power 120 mW
Process Electrodes Gold cathode, silver anode, silver reference (3 electrode polarographic
clark cell)
Membrane PTFE/FEP
O-rings Viton® (other materials available)
Sensor Head Material PEEK
DataStick Material 316 stainless steel, PEEK or CPVC
Weight 1.2 lbs (PEEK or CPVC)
2.6 lbs (316 stainless steel)
Units of Measure
Measurement Units ppm, %
Temperature Units °C, °F
Air Automatically adjusts for set pressure
Sample 1 point
Zero 1 point
Temperature 1 point
Compensation Options
Salinity 0 mS/cm to 999.9 mS/cm
Pressure 539.2 mm Hg to 792.4 mm Hg
Temperature Automatic from -5 °C to 50 °C
Other Configuration Options
Sensor Filter 0 to 100 seconds
Temperature Filter 0 to 100 seconds
Approvals and Ratings
Immunity & Emissions CE Certified 89/336/EEC: CISPER 11, EN61000 (-4-2,-4-3,-4-4,-4-6, 4-8)
Safety cULus Listed; 367G E303570
Hazardous Locations Haz Loc Class 1, Division 2,
Groups A, B, C, D. Max Ambient 50 °C
† Note: Typical at 25 °C Performance unaffected by cable length
‡ Note: Class II DC power supply required
†† Note: D. O. and Temperature are precalibrated at the factory


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