This thermoucouples can be used in place of your thermistors on All-Metal HotEnds (e.g. E3D). Note that you will probably need additional hardware to connect the couple to your controller board.
Tech specs
Maximum Temperature: + 1,100°C
Minimum Temperature: - 50°C
Probe Diameter: 2 mm
Lead Length: 1000 mm
Thermocouple Type: K
Lead Insulation: PTFE
What's in the box:
Electronics
1 x Type K Thermocouple (Welded Tip)