I have a small bench top oven for heat treatment experiments. I figured it would be a better solution than sticking a wire thermocouple in the door, and it is. However, at 1100F it's about 4-5% less compared to the controller and two other thermocouples I've tried. It gets better around 2000 F, the drop is around 1.5%. Everything else works fine. I have higher quality options when I need them. I only use these to log the data to see the time at the temperature.
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