Description: The ergonomic design makes it very comfortable to hold and slide. The accurate positioning makes it very reliable and useful. There are five scanning modes, you can choose the most suitable mode according to your work needs. The large LCD screen makes the data clearer. Made of ABS material, it is very durable. The length of this product is 15.2 cm, the width is 6.2 cm, and the height is 2.8 cm. It can quickly find wood, metal and AC wires in the walls, floors and ceilings of houses. It can also work on laths, wallpapers, wooden floors, soundproof ceilings, painted walls, etc. Avoid danger when installing TV, cabinets, garage racks, etc. Product Name: Stud Finder Material: ABS Certification: CE Battery: 9V 6F22 battery (not included) Features: Precise positioning, LCD display, comfortable grip Five Scan Modes: 1. Pen 1/2-inch Scan: Finds the center and edge of wood and metal studs up to 1/2-inch deep (13 mm). 2. Pin 1-inch Scan: Finds the center and edge of wood and metal studs up to 25 mm (1 inch) deep. 3. Pin 11/2-inch- Scan: Finds the center and edge of wood and metal studs up to 38 mm (11/2 inches) deep. 4. Metal Scan: Captures metal to a depth of 60 mm (2.36 inches) 5. AC Scan: Real-time. Unprotected AC power cord can be up to 51mm deep (up to 2 inches) Size Details: Size: 15.2cm x 6.2cm x 2.8cm / 5. > Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight size differences due to different manual measurements. Package Included: 1 x Bolder Detector 1 x English User Manual