DIY Supplies : ELECTRICALPower Type : Battery-PoweredCertification : CECan provide : electronic manual in EnglishUse range : stud,metal ,AC live wiresMini Wall Scanner Metal Wall Detector Find Metal Wood Studs AC Voltage Live Wire Detect Wall Scanner Electric Box FinderProcuct Information:Features:1. WORKS ON WALLPAPER & FABRIC: The stud finder has a depth range of 3/4-inch through drywall and works on surfaces covered in wallpaper and fabric.2. FIND STUD EDGES: The stud finder wall scanner has the edge detection to find stud edges of both wood and metal stud.3. DURABILITY: With shock-Resistant & Water-Resistant body for durability and long life.4. WIDELY USED: Press and hold the button to calibrate first, then the wall scanner finds all materials different from the calibrated material.Description:(At 35-55% relative humidity)1. Depth Range: 3/4(19 mm) through drywall2. Stud Center: 1/8" (3mm) for wood; 1/4"(6mm) for metal3. Shock Resistance: up to 3 feet (1m) dropped onto concrete4. Water Resistance: water-resistant, but not waterproof5. Operating Temperature: +20F to +120F (-7C to +49C)6. Storage Temperature: -20F to +150F (-29C to+66C)7. Weight: 80g8. Shell Material: plastic9. Dimensions: 136x23x50mm