PINPOINT ACCURACY: Pinpoints the exact location to drill or cut through a wall, accurate to within half an inch up to 4' away
EASY TO USE: Place the transmitter into the wall and the receiver will draw you to the exact location of the transmitter from the other side. Then, simply mark the wall and drill the hole.
KIT INCLUDES: transmitter, receiver, (2) 9V batteries, tack adhesive, instruction sheet, and carrying case