Urea pressure and temperature sensor with improved sealing

A urea pressure and temperature sensor (100) comprising:

• a housing (1);
• an O-ring (2);
• a NTC housing (3) enclosing a NTC thermistor;
• a pressure sensor (5);
• a terminal (6);
• a connector assembly (8);
• a PCB (9);
• and
• a cover (10);
• wherein,
• said housing (1) has an inlet (14) through which urea enters in a flow path and exits from an outlet (15);
• said connector assembly (8) has a surrounding cavity provided on an outer surface of the connector assembly (8) in which a connector seal (7) is fitted and said connector seal (7) on its outer surface has at least two protruding ribs (16) which seal against the surface of the NTC housing (13) and prevent water ingress during disengagement of a mating connector connected at the terminal (6);
• and
• a sealing gasket (4) on the outer surface has at least two ribs (17) that provide sealing against the pressure sensor (5) and at the bottom said sealing gasket (4) has an annular flange (18) that supports the pressure sensor (5) from the bottom, fitted such that there is no cavity left near the pressure sensor (5) and hence accumulation of urea is prevented.