Electrical sensor device for the level of the washing water in a washing machine, in particular in a dish-washing machine

An electrical sensor device for the level of the washing water in a washing machine, in particular in a dish-washing machine, comprising

• at least one electrical air pressure threshold sensor, with a body which has an inlet connector for an air pressure to be detected, and capable of providing an electrical signal when said air pressure exceeds a predetermined threshold value;
• a support structure intended to be fixed in the machine, and to which the body of said pressure sensor is fixed;
• and
• at least one duct having one end coupled to the inlet connector of the pressure sensor, and the other end extending into the washing chamber or tub of the machine in such a way that when the level of the washing water in said chamber or tub increases, said water is capable of causing air to be trapped in said duct;
• said at least one duct comprising a length of flexible tube, coupled to the inlet connector of the associated pressure sensor and curved and joined to said support structure in such a way as to form a loop which extends higher than the body of the pressure sensor, and which then continues downwards in the direction of the washing chamber or tub.