The GOLD PROBE oxygen probe from SSI Corporation in the United States is a zirconia oxygen sensor used for atmospheric measurement, including non oxidizing, reducing, neutral, and carburizing processes.
discoloration of the protective sheath is the result of the quality assurance certification procedures conducted in standard carbon atmospheres at typical furnace temperatures
This probe has been provided with a tubing fitting for burnoff,for those applications where burnoff is not payacticed,replace the burnoff fitting with the enclosed stainless steel screw
Audited Supplier 
){kind=link}