Abstract: A compound sensor which can improve the space for installing sensors and an operation for installing sensors by organizing various types of sensors, are provided. A compound sensor according to the present invention includes a light-shielding plate (3A) having one face onto which sunlight is irradiated and the other face located on a side opposite to the one face, which shields the sunlight from the one face side toward the other face side, a solar sensor (8A-8C) provided in the one face of the light-shielding plate (3A), and a temperature sensor provided in the other face side of the light-shielding plate (3A).