Accurate And Fast: The detector adopts high-sensitivity intelligent micro-sensor chip, which can accurately and quickly find the edges and centers of metals, studs, joists, pipes and AC lines behind walls, floors and ceilings. detection can save users' time and energy and easier to complete tasks. Regardless of , homeowners and DIY enthusiasts, this must be the ultimate choice. 5-in-1 Depth Detection: This stud detector wall scanner has 5 scanning modes. Upgraded 5-in-1 mode provides users with more detection requirements. Digital LCD Display And Audio Alarm: The stud detector is equipped with a large LCD display and audio alarm, which helps to detect the accurate position of the object, in addition to displaying the detection mode, center point, low battery indicator, etc. When the material is found, the LCD display and audio alarm will tell you if you are closer to the target. Auto-Calibration Provides You With Maximum Reliability And Accuracy: In the stud/deep mode, place the LCD display where you want to check the calibration; in the AC/Metal mode, place it in the air for calibration. Usage: Quickly locate wood, metal and AC wires hidden in the walls, floors and ceilings of houses. It can work in slats, wallpaper, wood floors, soundproof ceilings, painted walls and other places. Avoid danger when installing TV, cabinet, garage rack, etc. This is a kind of fine quality digital wall detector. Multifunctional wall detector, metal detection, wood detection, wire detection, accurate detection, wide ranges of applications. The wall detector can quickly locate wood, metal and AC wires hidden in the walls, floors and ceilings of houses. Model:HLW330 Name:Multifunctional Wall Scanner 5-in-1 Stud Detector Battery Model:9V 6F22 battery (not included) Power Type:Battery-Powered With LCD S Or Not:Yes Item Weight:148g/5.22oz Multifunction wall scanner HLW330 features five scanning modes: Stud 1/2 inch scan: Locates the center and edges of wood and metal studs up to 1/2 inch (13 mm) deep Stud 1 inch scan: Locates the center and edges of wood and metal studs up to 1 inch (25 mm) deep Stud 1 1/2 inch scan: Locates the center and edges of wood and metal studs up to 1 1/2 inch (38 mm) deep Metal Scan: Detects metal up to 2.36 inch (60 mm) deep AC Scan: Detects live unshielded AC wires up to 2 inch (51 mm) deep Colour:A:Black Material:Plastic Size:152x62x28 mm/5.98x2.68x1.1 inch Package Contents: 1 * Metal Finder Scanner Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.