Is the temperature probe of the thermostatic kettle built-in or external? The temperature sensing probe of the thermostatic kettle is built-in, and the sensor cannot be seen from the outside by the built-in probe. First of all, it is naturally more elegant and beautiful in appearance. The power consumption of the built-in probe is extremely low, and the influence of external factors such as aging, vibration and volatile chemical gases can be reduced to ensure its good stability. Integrated installation, suitable for measuring the whole ambient temperature.