PURPOSE: To provide a sensor with an address for which address setting work is easy and in addition, the sensor attached with the address whose address can be easily confirmed from its appearance.

CONSTITUTION: This sensor with the address is constituted by fitting and fixing an address setting connector 5 to determine the address of a sensor main body 4 to a sensor connector 6 formed at the sensor main body 4 so as to be freely attachable and detachable. The address setting connector 5 is constituted by arranging plural terminals in two lines, and the prescribed address is set in accordance with an electric connection state between plural terminals. The address setting connector 5 gives the prescribed electric connection state between plural terminals of the sensor connector 6 by being fitted to the sensor connector 6.