Starting at $17,905.00
  • Usually ships in 3-4 weeks



  • Multi-zone temperature control
  • Quick cool technology
  • 572 to 2192°F (300 to 1200°C) temperature range
  • ±0.18°F (±0.1°C) stability
  • ±0.36°F at 2192°F (±0.2°C at 1200°C) radial uniformity
  • ±0.36°F at 2192°F (±0.2°C at 1200°C) axial uniformity
  • 40-minute heating time (74 to 2192°F, empty well)
  • 90-minute cooling time (2192 to 572°F, empty well)
  • Operating conditions:
    32 to 122°F, 0-90% RH
    non-condensing, <6,560 ft (2000 m) altitude
  • 7-inch pivoting color touchscreen display
  • Wi-Fi, Bluetooth, USB, LAN


The Additel ADT850 laboratory thermocouple calibration furnace provides calibration and annealing support for a wide variety of thermocouple types and lengths. The selectable "mode of operation" integrated into the touchscreen interface allows users to select from nine different modes, accounting for immersion depths from 200 to 370 mm. The user also has the ability to select a variety of insert types to accommodate reliable and repeatable measurements for both metal and ceramic style probes.

The ADT850 includes a sliding probe holder labeled with measurement gradients to help safely insert standard and UUT probes to correct depths. The advanced probe holder design includes a clamp to securely hold the test probe in place at all times.

The ADT850's menu and touchscreen interface are easy to use, and the display pivots and tilts so users can customize the product to fit their needs.

The ADT850 offers two primary ordering options. The ADT850-1200-CUPL includes the ADT850 mainframe and a cup-style insert to accommodate base metal thermocouple calibration work. The ADT850-1200-ALUM is configured to support noble metal thermocouple calibration work. Additional optional interchangeable insert types are available to help users accommodate a vast array of additional device types.

Additel ADT850 Laboratory Thermocouple Calibration Furnace Applications

  • Energy industry
  • Calibration laboratories
  • Aerospace
  • Metallurgy