Abstract: A sensor device (11) which can be attached at at least two different installation locations in a motor vehicle (10) by at least one attachment device and which has a data output. The sensor device (11) is installed at a predefined installation location in the motor vehicle (10) by attachment to at least one predefined attachment point (13), the attachment point (13) being characteristic of the installation location in such a way that the attachment to the one predefined attachment point (13) generates a predefined electrical effect, and the sensor device (11) is installed at another predefined installation location in the motor vehicle (10) by attachment to at least one other predefined attachment point (14), the attachment to the other predefined attachment point (14) generates a different predefined electrical effect. It is possible to determine the actual installation location of the sensor device (11) by sensing the generated electrical effect.