The sensor unit (40) includes a case (41) having a bottom surface (41a); a sensor element (42) including a sensor element main body (421) and a power supply terminal (42a); and a power supply bus bar (44) including an inclined part (44d) and a first connection part (44a). An end on one side of the power supply terminal (42a) is electrically connected to the sensor element main body (421). In a state where the power supply terminal (42a) passes through the first connection part (44a), an end on the other side of the power supply terminal (42a) is in contact with the inclined part (44d) and the first connection part (44a) is in contact with the power supply terminal (42a), so that movement of the power supply terminal (42a) in a direction away from the bottom surface (41a) is restricted.