1. 5 Scanning Modes: The Digital Wall Scanner Has 5 Scanning Modes, Which Can Locate The Center And Edge Of Wood, Beams, Joists, Metal Or Deeply Buried Objects.2. Sensitive Sensor: Using A Sensitive Smart Micro-Sensor Chip, Can Quickly Find The Edges And Centers Of Metals, Studs, Joists, Pipes And Live Ac Wires Behind Walls, Floors And Ceilings.3. Lcd Display: The Stud Finder Has An Lcd Digital Display, Which Can Quickly Detect The Exact Position Of Studs And Other Objects.4. Easy Operation: Turn On The Electronic Stud Finder, Then Place It Flat On The Wall And Press The Scan Button To Calibrate.5. Wide Applications: Can Be Used For Different Walls, Such As Slatwall, Wallpaper Floors, Soundproof Ceilings, Painted Walls, Etc.Specification:Item Type: Stud Finder.Product Size: Approx. 152 X 70 X 38Mm / 6 X 2.8 X 1.5InMaterial: PlasticWeight: Approx. 170G / 6OzBattery: 1 X 9V Battery, Model: 6F22 (Battery Not Included).Application: Quickly Locate Wood, Metal, And Ac Wires Hidden In Walls, Floors, And Ceilings Of Homes. It Can Work On Slatwall, Wallpaper, Wood Floors, Soundproof Ceilings, Spray-Painted Walls, And Other Places. Avoid Danger When Installing Tvs, Cabinets, Garage Racks, Etc.Battery Power Indicator: When The Battery Is Low, The Low Battery Indicator Icon Will Be Displayed, Which Is Not Enough To Power The Tool For Normal Operation. Please Replace The 9V Battery With A New One Immediately.Package List:1 X Stud Finder(Battery Not Included) 1 X English User ManualNote:If The Wall Contains Lve Wires, Do Not Take Any Action That May Be Dangerous. Before Entering The , Be Sure To Turn Off The Electricity, Gas, And Water Supplies. Failure To Follow These Instructions May Result In Electric Shock, Fire, Serious Injury, Or Property Damage. When Working Near Electrical Wires, Be Sure To Turn Off The Power.