Thermocouple: K typeMeasuring temperature: -58F-2372F (-50C-1300C)Wire diameter: 3.2mm length: 215mm / 8.5 inchInsulation length: 162 mm / 6.3 inchTube shape: 6 Pcs x 1 inch ceramic tubeInsulator: double hole insulator connector can be connected directly to a digital thermometer.It can also be connected to a temperature controller by removing its connector.It can measure extremely high temperatures up to 2372F (1300)This heavy-duty 8 gauge is 8.5 inches long.The length of the thermocouple was measured by the number of ceramics 1 inch long.Added some extra length to the connection.You can adjust the length of this thermocouple by bending the probe/thread during installation.color: WhiteMaterial: Nickel-chromium-nickel-siliconPackage Contents: 3 x K type thermocouple sensorOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.