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Hello, I'm trying to calibrate my thermometer and when I going to add or subtract from 8.6 I press F-3 and the numbers aren't starting from 0 it at 28.4. please help. 👍
Hello, I'm trying to calibrate my thermometer and when I going to add or subtract from 8.6 I press F-3 and the numbers aren't starting from 0 it at 28.4. please help. 👍