Oxygen Probe

Oxygen Probe


Quantity: 200 Per Box

SYSCON Sensors Oxygen Measuring probes are designed for the Steel industry to aid in the refining process by quick and accurate measurement of active oxygen and precise temperature. They are ideal for taking oxygen readings from Electric Arc Furnace (EAF), Basic Oxygen Furnace (BOF), Ladle, or Tundish stations.

SYSCON Oxygen sensors contain an electrochemical cell which generates an output voltage that allows the precise computation of active oxygen present in molten steel. The probe also includes a Type-S thermocouple to provide simultaneous temperature indication. The sensor probes include cardboard tubes which are used to protect the lance and contact block during immersion.

Immersion tubes are made from high density convolute wound paper for maximum strength and resilience. Probes with immersion tubes are available in a variety of lengths.

Maintain stock in cool, dry, and well-ventilated location. Paper tube moisture content must remain below 12%. Appropriate PPE required; splashing of molten metal can occur.


  • Fast and precise determination of Active Oxygen and Temperature
  • Compatible with industry standard lances and analysis equipment
  • Suited for automatic handling equipment
  • Dual sensors – oxygen cell AND type-S thermocouple for simultaneous readings
  • Economically priced
  • Manufactured under ISO 9001:2015 Quality Standards


Thermocouple sensor

Pt / PtPh 10% Type-S
Accuracy: +-5F

Oxygen sensor

ZrO (MgO stabilized) / Cr-Cr203
Accuracy: +-5-10 Mv
Range: 1-200 ppm

Slag Cap

Steel and cardboard

Sampling Time

6-7 seconds; 10s max immersion

Tube Length As required

Tube Diameter

ID: 1.15" (29.3mm), OD: 1.83" (46mm)




Oxygen / Temperature probe sensor

  • LL (tube length) options:
    • 00” (cartridge only)
    • 32”, 44”, 72”, others on request

    Oxygen probe tube only

    • LL (tube length) options:
      • 32”, 44”, 72”, others on request

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