Stud Sensor I65 Onestep

Stud Sensor I65 Onestep, Finds Center & Edges Of Studs & Joists, Finds Copper & Other Non-Ferrous Metal Pipes Up To 1-1/2" Deep, Finds Rebar & FerrousMetal In Concrete Up To 3" Deep, Also Detects Hot AC Wires, Includes DVD How To Guide, Uses 9V Battery, Included.