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High temperature K-type Thermocouples like the model PK-1000 always had one problem: how do you secure the fibers at the tip? For low temperatures a PE plastic shrink tube can be used, but for probes that have to withstand 1800 degrees F (1000 degree Celsius) that is not a solution, the plastic would just melt and burn off. All kinds of ceramic glue or cement have been tried, but they did not work well. We now came up with an excellent solution: We use a thin metal wire and tightly …