Feature:1. 5 In 1 Function: This wall detector adopts 5 in 1 design for detecting the center of wood stalks, metal locations and live wires in walls made of wood paneling and plasterboard type materials with AC warning function.2. Alarm Design: This wall detector adopts an alarm design, which keeps you informed of the wall condition and makes the operation more accurate.3. Quick Locating: This wall detector quickly and easily locates metal studs, joists, metal pipes, rebar, and energized AC wires behind walls, floors, and ceilings.4. Wide Application: This wall detector can clearly identify what objects are inside the wall, which is more intuitive and accurate. It is suitable for wood detection, metal detection, current detection.5. Compact And Convenient: This wall detector is small in size and light in weight, making it very convenient to carry around and use.Specification:Item Type: Wall DetectorModel: T10Material: ABSPower Supply: 1 x 6F22 9V Dry Battery 800mAh ( With Matching Battery )Measuring Range:Wooden File Detection:|: 1/2 Inch (12.7mm)II: 1 Inch (25.4 mm)III: 1-1/2 Inch (38mm)Metal Detection: 2.36 Inch (60 mm)AC Detection: 2 Inch (51 mm).Package List:1 x Stud Finder Wall Detector1 x Manual1 x Battery (Random Style)