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Rosemount™ Oxymitter™ 4000 Replacement Probe for Hazardous Areas
The Oxymitter 4000 In Situ Oxygen Transmitter is the world's first in situ, zirconium oxide-based oxygen transmitter for flue gas measurement with an explosion-proof rating. These oxygen measurements can be used in a control system or by a boiler operator to fine tune burner fuel/air ratios for maximum efficiency.
Rosemount™ Oxymitter™ 4000 Replacement Probe for Hazardous Areas


Response Time
Up to 8 sec T90
Process Temperature Range
Up to 1300 °F (705 °C) or 1922 °F (1050 °C) with optional bypass and jacket
Ambient Temperature
-40 to 176 °F (-40 to 80 °C)
Probe Length Options from 18 in (0.46 m) to 18 ft (5.49 m)
Communication Protocol
4-20 mA HART, FOUNDATION Fieldbus
Hazardous location, see full specs for complete list of certifications


  • Outstanding accuracy
  • Electronics mounted to probe or separate
  • Optional Xi advanced electronics
  • Large backlit LCD display
  • Advanced software features
  • Wireless - via THUMTM Adaptor
  • Adaptable to any existing O2 probe installation
  • Advanced sensor diagnostics: alarm indicates when calibration is recommended
  • Optional explosion-proof ratings: see PDS 106-340.C01
  • Digital HART® or FOUNDATION™ fieldbus communications: AMS/PlantWeb® compatible
  • Fully field-repairable
  • Variable probe insertion option