All parts are included ... You just have to put the measure in which the sensors are to be placed in, The amounts measured points with the cordless screwdriver and the supplied drill sawing, pulling wires, sensor pure, connect to the tail light and ready. Had first panic that I screw up my bumper ,,, but knock on wood ... has worked wonderfully.
When inserting the Rückwährtsganges there is a short (well loud) beeper. The closer you get an obstacle the shorter the distances of the pager ... feet are me it was the best investment I've made.
