The device works - as long as the manual three times one reads and carries with it - well. To understand the device is now available. The battery I take off after each use and stow in the trunk of my both rotary hammer. After several uses, I am very satisfied with the purchase.
To use: keep unit on the wall and press the button until it beeps. Then the search can begin only because "have to get used to the wall" the device. Not previously!
Results: live wires finds the device very reliable, even metal. Wood I do not care.
