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What type of water level sensor can be used for coffee machine water level detection? Are you still using a floating ball water level sensor? The first type is the capacitive water level sensor, the detection situation is: if the liquid is added to the container, the capacitance value increases with the increase of the liquid coverage area. When the capacitance value is caused by the liquid level change, the capacitance water level sensor will remind the water according to this signal. The capacitance value of the capacitor sensor air state is different from the liquid state. Note that capacitive is not soaked in water, it is non-contact and can only be applied to non-metallic containers. Capacitive sensors can be separated from the tank and can detect the water level, so the tank does not have to worry about cleaning and scale
