A two component kit (transmitter locator) allows you to pinpoint the exact location to drill or cut through a wall. Place the transmitter on one side of the wall and from the opposite side watch as the receiver draws you to the exact location of the transmitter. Mark the spot and drill. Accurate to within oe" and up to 40 inches away. Kit includes: transmitter, receiver, two 9V batteries, tack adhesive, instruction sheet and carrying case. 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 Country of origin China