ITEM NAME:High Temperature K Type Thermocouple Sensor for Ceramic Furnace 1300℃ 23 IO JCï¼D Its connector can be connected dierectly to Digital Thermometers. By removing its connector, it can also be connected to Temperature Controllers. It can measure VERY HIGH temperatures up to 2372 °F(1300℃) This heavy duty 8 gauge comes in 8.5 inch length. The length of this thermocouple is measured by the number of 1 inch long ceramics. Some extra length is added for connections. You can adjust the length of this thermocouple by bending the probe/thread at installation. Specifications: Thermocouple: Type K Measuring Temperature: -58 °F-2372 °F (-50 °C-1300 °C) Wire Diameter: 3.2mm Total Length: 215mm/8.5" Insulation Length: 162 mm/6.3" Tube Shape: 6 Pcs x 1" Ceramic Tube Insulator: Two-Hole Insulator Package included: 1pcs Note: Please allow 1-3mm error due to manual measurement..You can adjust the length of this thermocouple by bending the probe/thread at installation. Thermocouple: Type K. Tube Shape: 6 Pcs x 1" Ceramic Tube.