As one of the failed products that designers tried to develop, they invested 15W back and forth, sold less than 3000 sets, and ended miserably..... There is no less pit to step on!
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It is mainly used by foreigners.
It's really not practical. You can tell if it's hot or not by touching it. You can also take an instrument to measure it.
The market for food thermometers should be very small, and most people don't have this demand at home, or there are too many people. The biggest lesson is that it costs too much to verify whether the product is valid.
Perfect
it looks good
Why also failed
I don't know which scene can be used.