A sensor unit comprising: a sensor (24, 25; 24A, 25A; 50, 51) that detects a physical quantity related to a detection object; a sensor connection member (11, 12, 13, 14, 15; 40) having at least a first connection portion (11b, 12b, 13b, 13d, 14b, 15b) to which a lead to the sensor (24, 25; 24A, 25A; 50, 51) is connected and a second connection portion (11c, 12c,.13c, 15c; 41) electrically connected to the first connection portion (11b, 12b, 13b, 13d, 14b, 15b; 42) and electrically connected to an outside of the sensor unit; and an electronic component (C1-C3, ZD1-ZD3; C21-C24, ZD21, ZD22) provided in a circuit between the first connection portion (11b, 12b, 13b, 13d, 14b, 15b) and the second connection portion (11c, 12c,.13c, 15c; 41), wherein the sensor connection member includes a plurality of the first connection portions and a plurality of the second connection portions so as to enable a plurality of the sensors (50; 51) to be attached to the sensor connection member, wherein the sensor connection member is a circuit board, at least one sensor (50, 51) is mounted on the circuit board, and the plurality of the first connection portions and the plurality of the second connection portions are provided on the circuit board; or a plurality of the sensor connection members (11, 12, 13, 14, 15) are provided according to a number of the sensors (24, 25; 24A, 25A) so as to enable the sensors (24, 25; 24A, 25A) to be attached to the sensor connection members (11, 12, 13, 14, 15), wherein the sensor connection members (11, 12, 13, 14, 15) are arranged in parallel to each other, with each sensor connection member (11, 12, 13, 14, 15) being a terminal that is formed of a conductive material in form of a plate; and a lead to at least one of the sensors (24, 25; 24A, 25A) is connected to the sensor connection members (11, 12, 13, 14, 15). a sensor (24, 25; 24A, 25A; 50, 51) that detects a physical quantity related to a detection object; a sensor connection member (11, 12, 13, 14, 15; 40) having at least a first connection portion (11b, 12b, 13b, 13d, 14b, 15b) to which a lead to the sensor (24, 25; 24A, 25A; 50, 51) is connected and a second connection portion (11c, 12c,.13c, 15c; 41) electrically connected to the first connection portion (11b, 12b, 13b, 13d, 14b, 15b; 42) and electrically connected to an outside of the sensor unit; and an electronic component (C1-C3, ZD1-ZD3; C21-C24, ZD21, ZD22) provided in a circuit between the first connection portion (11b, 12b, 13b, 13d, 14b, 15b) and the second connection portion (11c, 12c,.13c, 15c; 41), wherein the sensor connection member includes a plurality of the first connection portions and a plurality of the second connection portions so as to enable a plurality of the sensors (50; 51) to be attached to the sensor connection member, wherein the sensor connection member is a circuit board, at least one sensor (50, 51) is mounted on the circuit board, and the plurality of the first connection portions and the plurality of the second connection portions are provided on the circuit board; or a plurality of the sensor connection members (11, 12, 13, 14, 15) are provided according to a number of the sensors (24, 25; 24A, 25A) so as to enable the sensors (24, 25; 24A, 25A) to be attached to the sensor connection members (11, 12, 13, 14, 15), wherein the sensor connection members (11, 12, 13, 14, 15) are arranged in parallel to each other, with each sensor connection member (11, 12, 13, 14, 15) being a terminal that is formed of a conductive material in form of a plate; and a lead to at least one of the sensors (24, 25; 24A, 25A) is connected to the sensor connection members (11, 12, 13, 14, 15).