The fuel tank (1) comprises: an electronical board, a first sensor connected to the electronical board, the first sensor being a pressure sensor, a pressure port (7) forming a hole through a wall (12) of the tank, at least one second sensor (4) extending fully inside the tank, and a connector (10) connecting the second sensor to the electronical board through the pressure port, a first part (14) of the connector being connected to the second sensor by at least one first wire (13) and a second part (9) of the connector being connected to the electronical board by at least one second wire (8).