1、3‑in‑1, scanner stud detector for wood, metal, and AC wires. It can quickly locate and indicate the live AC wires, can detect the maximum depth of 0.71in (18 mm) studs, 1in(25mm) metal, 2in(50mm) live wires. 2、Easy to read, LCD digital display and continuous audible warning indicate you the position of the stud. 3、Easy to use, after the battery is installed, there will be a long beep when it is turned on. When it is automatically turned off, press the test button for 2 seconds to turn it on again. 4、Compact design, easy to carry and use, when the battery power is too low, the detector will send out a reminder. 5、There is an anti‑scratch pad on the back of the detector to prevent the product from scratching and affecting the appearance. Item Type: Metal Detector Material: ABS Weight: Approx. 202g/7.1oz Product Size: Approx. 17.5 x 8 x 3cm/6.9 x 3.1 x 1.2in Battery: 3 x AAA 1.5V Battery (Battery Not Included) Stud Detection Depth: Wood: Approx. 30 x 30mm/1.2 x 1.2inMetal Detection Depth: Iron Pipe: Approx. 25mm/1inAC Live Wire Detection Depth: Approx. 50mm/2in (AC 90-250V Live Wire), Frequency 50-60Hz Working Temperature and Humidity: -7℃-40℃, <75% Storage Temperature and Humidity: -20℃-50℃, <85% .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; } 1 x Metal Detector (Battery Not Included)1 x Instruction