Do you know what kind of bimetallic thermometer is suitable for use on the electric kettle?

Our team will travel in Germany found an the other pot was boiling, compared with our common electric kettle is more a bimetallic thermometer ( Really learned German rigorous) 。 Panel of the bimetallic thermometer, there are four points, respectively corresponding to the best temperature needed to do different things, for example, the first point is boiling the milk, the second point is that the temperature of the coffee & hellip; … The pot of the bimetallic thermometer on the panels with what we see at ordinary times is different, but the principle is the same. Main use is the principle for the expansion of the solids, its main consists of two kinds of the difference in expansion coefficient of metal, piled up two pieces of metal welded together constitute a bimetal thermal components. When the temperature changes, the two pieces of metal due to varying degrees expansion makes the expansion degree of large pieces of metal bent and, in turn, produce displacement, at this point, the change of temperature has changed to the change of displacement, and according to the conversion relationship between the temperature and the displacement will revert to the measured displacement value can be displayed. With this kind of bimetallic thermometer, significantly increased the function of the kettle, also brought convenience to our life.