- A2 PROBE -



All the best features you’ve come to expect from the AccuCarb® and AtmoProbe™ are now combined into one new product series, the A²™.
This solid zirconia electrolyte probe is the result of extensive research and developmental testing, and with its many patented innovations,
the A² represents a huge breakthrough in probe design.

The design of the A²™ has been field-proven for the past 40 years to provide the most robust and reliable atmosphere measurement solution available.
In “side-by-side” trials in carburizing atmosphere applications, the A²™ has repeatedly shown to provide the most accurate measurement of true
carbon potential over an extended period of time without any “process factor” adjustments necessary.

Available in a selection of sizes and configurations in either alloy or ceramic sheath materials, the A²™ is designed to meet most industrial
atmosphere measurement applications over a wide range of operating temperatures.

  • In a multiple probe installation, the A² was determined to be more accurate, by carbon shim
    analysis, than other commercially available probes.
  • The advanced design of A² make it thermally and mechanically tougher than traditional first-
    and second-generation probes; meaning it can be installed and removed quickly.
  • Type K sheathed thermocouple standard at no charge.
  • Adjustable insertion depth allows one probe to fit ALL furnaces.
  • This reduces your replacement parts inventory.
  • Any one-inch NPT pipe thread can be used to mount the probe in a furnace wall.
MODEL # AND DESCRIPTION Part No. T/C Type T/C Type T/C Type T/C Type Length Length
A2-6-20 K S R 20” 508 mm
A2-6-26 K S R 26” 660 mm
A2-6-32 K S R 32” 812 mm
A2-6-38 K S R 38” 965 mm
CA2-6-20 K S R 20” 508 mm
CA2-6-26 K S R 32” 660 mm
CA2-6-32 K S R 32” 812 mm

The A²™ probe features a wide variety of accessories including:

  • Probe Reference Air System
  • Probe Conditioning System (Burnout Air)
  • Probe Sampling Systems
  • Probe 330RA high temperature Mounting Flanges and Hardware
  • Ceramic Reheat Well
  • Shim Stock Testing Hardware (Holder, Shims, Port)