Feature:1. 5 IN 1 STUD FINDER: This stud finder is used to detect wooden board, gypsum board material, metal position and live wire, with AC warning function2. ALARM FUNCTION: This handheld wall scanner is alarm design, allowing you to keep track of the wall condition at all times, ensuring accurate operation.3. MULTIPLE USAGES: Can quickly and accurately locate metal studs, joists, metal pipes, steel bars, and live AC wires behind wall, floors, and ceilings.4. HANDHELD USE: The wall stud scanner is handheld design, making it comfortable to hold, and the compact size for easy carrying and storage.5. LCD DISPLAY SCREEN: The wall detector is equipped with LCD display screen, which is clear and intuitive, suitable for wood, metal, AC, and other detection.Specification:Item Type: Wall ScannerModel: HW430Material: ABSPower Supply Method: 1 x 9V Dry Battery (not included)Measurement Range: Wood Detection: |: 1/2 inch (12.7mm)II: 1 inch (25.4mm)III: 1-1/2 inch (38mm)Metal Detection: Approx. 60mm / 2.4inAC Detection: Approx. 51mm / 2in.Package List:1 x Wall Scanner1 x User ManualNote:Battery Not Included