The QuickSilver II™ provides state-of-the-art features in a cost-effective package. This reliable oxygen probe is suitable for carburizing, carbonitriding, neutral hardening and generator applications.


  • Thermal shock resistant – Installs in seconds instead of 1″ (25.4 mm) every 2 minutes like older technologies
  • Patented Accusense provides industry-leading accuracy while resisting sooting
  • CPI burn-off (air purge) fitting is standard for maximum safety
  • Every probe is 100% furnace tested and certified
  • Response time of < 1.0 second
  • S, K, or R type T/Cs available
  • Insertion lengths of 23.6″ (600 mm), 31.5″ (800 mm) or 39.4″ (1,000 mm)
  • Standard 12-month warranty (lease option available)
  • Corrosion-proof quick connect XLR standard with adaptors for all connections
Carbon potential range 0.10% to 1.4%
Output in normal heat treating 1,000 to 1,200 mV DC
Normal sensor operating temp. 1,400 to 1,850 °F **
Sensor cover temp limit 200 °F max.
Sensitivity 0.02 mv or .0025% °C
Accuracy ±0.03% C
Stability ±1 mv over probe life
Response time Less than 1 second
Impedance Less than 6 K ohm
Sensor construction Stabilized zirconia solid electrolyte, patented alloy electrode
Sensor thermal shock Caution is advised, outer alloy sheath protects ceramic zirconia tube
Sensor Life About 2 years with normal use
Warranty 1 year usage, non-prorated
Reference air requirement 0.2 to 1.0 MAX SCFH filtered ambient air
** minimum operating temp 1,150 °F