I've had to give me the PDO Multi after I had developed through the drilling of an unusually laid cable yet very great respect for the blind holes drilling. It shows when passing the wall of magnetic and non-magnetic metal objects in the wall and are in current-carrying conductors a warning sound and a blinking signal. Thus the positioning of cables but also from other lines very reliable and you can thus prevent expensive handicrafts bearing inserts after the tapping of lines. By these standards, the price is more than OK. Tip: When looking from electric lines should be light and other consumers in the room turn on, then the line is found even more reliable.
