5-in-1 wall-mounted m etal detector, can detect metal/wire/wood

Battery Type: 9V Dry Battery (Battery not included before leaving the factory) Feature: The new 1.5-in-1 design is more powerful, more accurate, and lasts longer. 2. This product quickly and easily l ocates metal studs, wood joists, metal p ipe reinforcement, and live AC wires behind walls, floors, and ceilings. 3. The alarm design allows you to know the condition of the wall at any time, making operation more accurate. 4. The SH402 wall detector can clearly identify objects in the wall, which is more intuitive and accurate. Wood detection, m etal detection, current detection. 5. It has a wide range of adaptability. You can use it as long as you want to see the internal conditions of opaque objects. 6. Uses improved internal s ensors. It detects changes in the density of the space behind the wall and l ocates stud centers very accurately.