A device for measuring the spring compression position of a motor vehicle, with a number of axle components and a chassis includes spring elements arranged between the axle components and the chassis, as well as with at least one magnet array and at least one magnetic field sensor. The casing is provided thereon with a window, and the circuit board is disposed in the casing. The second electrode plate includes a second transparent conductive layer opposite to and spaced from the first transparent conductive layer. In another embodiment, the expression of the endogenous gene may be further increased by co-integration of one or more amplifiable markers, and selecting for increased copies of the one or more amplifiable markers located on the integrated vector. Expediently, add-on cards may be used that do offloading till the SCSI layer.