Abstract: A sensor unit has sensors for measuring the components of a culture medium in a culture vessel, and comprises a plurality of sensors and a linking portion. The plurality of sensors each have a main body and a sensing unit disposed on the lower end side of the main body and immersed in the culture medium to measure the components of the culture medium. The linking portion links the plurality of sensors on the upper end side of the main body.

Abstract: A cell culture analyzer comprises a stirring member and an air discharge and intake unit. The stirring member is used in a state of being immersed in a medium, and has a liquid discharge and intake port for discharging or drawing in the medium, and an air discharge and intake port for discharging or drawing in air in order to discharge or draw in the medium from the liquid discharge and intake port. The air discharge and intake unit is linked to the air discharge and intake port of the stirring member, and discharges or draws in the air discharged or drawn in from the air discharge and intake port.

Abstract: A sensor performs measurement of a culture medium and is used in a state of being immersed in a medium placed in a well, the sensor comprising a main body having a first surface and a second surface that is on the opposite side from the first surface; an electrode unit that is provided on the first surface in the main body and to which a specific voltage is applied in the course of performing measurement in a state of being immersed in the medium; and a liquid holding portion that is provided around the electrode unit on the first surface, and that is disposed near the inner wall surface of the well and holds the medium up to above the electrode unit, in between the inner wall surfaces.

Abstract: A sensor unit (9) comprises a substrate (13) having a sensor (16), wiring (19) connected to the sensor (16), connection portions (20a, 20b) connected to the sensor (16) via the wiring (19), and a bent portion (17) where the sensor (16) is bent downward. The sensor (16) is formed so as to be cut out from the substrate (13) in a state in which the bent portion (17) remains on the substrate (13).