Feature: 1. MULTIFUNCTIONAL: This wall detector integrates cable, metal, wood and stud measurement. One unit is multi purpose, eliminating the need to purchase various detectors separately. 2. HIGH ACCURACY MEASUREMENT: Adopting high accuracy sensors and algorithms, the detection results are accurate and dependable. Whether you are detecting metal, wood or wire or stud locations in the wall, you can accurately detect them. 3. EASY TO USE: Quickly take measurements with just one button action. It is also equipped with a clear LCD screen so that each measurement result can be seen at a glance. 4. SAFE AND DEPENDABLE: The detector can accurately locate cables and metals in the wall, avoiding electrocution or damage to the wall when drilling holes or installing items. 5. LIGHTWEIGHT AND PORTABLE: This wall detector is compact and lightweight, suitable for carrying and using in various wall construction environments to increase work efficiency. Specification: Item Type: Wall Scanner Material: ABS Weight: Approx. 202g / 7.1oz Battery: 6F22 Battery x 1 (Excluded) Measuring Range: 0-100mm / 0-3.94in Measurement Accuracy: ±1mm + 1ppm Product Size: Approx. 17.7x7x3cm / 7.0x2.8x1.2in Package List: 1 x Wall Scanner1 x Instruction Manual1 x Storage Bag