Item Type: Stud Finder_x000D_ Material: Plastic_x000D_ Weight: Approx. 73g/2.58oz_x000D_ Size: 136x23x50mm/5.35x0.91x1.97in_x000D_ Battery (Shipped without Battery): 1x9V 6F22 battery_x000D_ At 35 to 55% Relative Humidity:_x000D_ Depth Range Accuracy: Scan and mark studs from both sides: up to 3/4 inch (19mm) through wall_x000D_ Stud Centers: Wood 1/8inch (3mm), Metal 1/4inch(6mm)_x000D_ Impact Resistance: up to 3ft(1m) Drop to Concrete_x000D_ Operating Temperature: +20 to +120 (- 7C to + 49C)_x000D_ Storage Temperature: -20 to -150 (- 29C to + 66C)_x000D_ Uses: Inspection of Wall Studs, Metal Pipes and Wires 1Locate Stud Edge: The stud finder features edge detection to locate the stud edges of wood and metal studs. It is highly accurate in its positioning. 2Designed for Long Lasting: This stud finder has has a shock and water resistant body, it is durable and it has a long life span. Big value for money. 3Surface Difference Wallpaper: There will be no difference in stud sensor functionality on surfaces covered with wallpaper or fabric, unless the cover used contains metal foil or fiber. 4Safe and Reliable: The stud finder is very practical and a necessary tool when you are repairing at home. It can quickly help you find wires and keep you safe. 5Wide Use: This stud detector quickly locates wood, metal, and AC wires in the wall, floors, and ceilings of the house. Helping you avoid danger when mounting TVs, cabinets, garage racks, etc.1 x_x000D_ _x000D_ Stud Finder 1 xEnglish Instruction Warning: Protect your eyes. Wear goggles.