The device meets the expectations that I put on a BOSCH-mid-range device. It is well made, comes with a nylon protective bag and it is good to understand manual in. This I have also read before use to make sure to use the device also correct. Not would annoy me more than to drill through mishandling in a water pipe or a power line.
Unfortunately me this device is no help at all, because it reacts much too sensitive for my taste. Even when I drive up to 10 times more than a point can be the area in which a line runs not really pinpoint. I tried it at several points in my apartment and did not even rely on the display of this unit. For example, I've been using the device the area around a sockets (in I know how the cables run) scanned in order to find the direction of the cable comes. Unfortunately, an exact location of the cable after several attempts impossible.
In the end I came without the device your goal faster. And that without a line to take.