Dewalt wall scanner at lowes can pick up a variety of things such as wood plastic magneticnonmagnetic metals and live wires up to three inches deep best stud finder for metals. The reason behind is that studs usually generate a marginal deviation in the dielectric constant while in the case of live wires electrical signals and electromagnetic waves are more definite and easy to pick up.
Stud Finder Wikipedia
Stud and electric wire finder. Stud finder is sensitive to the electric field. The more advanced scanners have multiple modes that detect studs metal live ac wiring non ferrous metal such as copper pipe and ferrous metal such as rebar. Electric field depends on the distance ie. Spotlite pointer shines a bright arrow to clearly indicate stud edge. If you put some paper between the stud finder and the wall you decrease the sensitivity of the stud finder. The material between you and wire air or other material.
How far you are from the live wire and the medium ie. Zircon metalliscanner m40 at amazon. Best stud finder for plastics. With the stud finder set to find electrical wires place it against the sheetrock wall and move it alongside the drywall. A signal will indicate the location of any electrical wiring that is behind the sheetrock. May indicate the location of a pipe electrical wiring other objects near the surface being scanned or an inconsistency in the surface material or paint etc.
The stud finder self calibrates when turned on to ensure a quick and easy scanning experience. Wirewarning detection indicates the presence of hot electrical wiring. If your stud finder seems to be picking up things between the studs it could be detecting metal or plastic plumbing components electrical boxes or wiring or metal ductwork. Find the edges of wood or metal studs and joists up to 1 12 in deep to securely hang pictures mirrors shelves cabinets and more. The stud finder provides four scanning modes including stud scan deep mode metal scan and ac wires scan. Use a pencil to mark the location of the wiring so that you can make a hole in the sheetrock at the precise location.
The stud finder is designed to detect. The stud finder offers many visible and audible cues with its lcd display and beep signal alert 3. The ability of an electronic stud finder to detect live wires is more reliable than when detecting studs. As the name suggests a stud finder detects studs behind the surface of a wall. The stud finder may also detect pipes wires or other objects that the user may not want it to detect. Detection is achieved using two different methods.