This product detects and locates in advance wood, metal and voltage (AC) through the wall.
The crevice detector is an excellent product for construction, renovations and home use, e.g. for drilling holes. The multifunctional detector is intended for detecting metals, wood and live wires (AC) through the wall / ceiling / insulation.
The permeable material can be concrete, wood, Gyproc, etc.
The device works with 1pc 9V battery (included in the package)