This instrument can detect metal (steel bars, copper pipes) hidden in walls, Ceilings and floors, live wires, bone locations under wooden walls, etc. Widely used in interior decoration, home installation, etc. All industries and types of construction can be carried out safely. Technical parameters Product model: NF-513 Product function: wall detection function Product appearance: two-color mold, tough Screen type 2.4-inch high-definition color screen, resolution 240 x 320 Charging method Support Type-C charging Battery Type Polymer lithium battery (390mAh) Voice broadcast Live voice broadcast Product size 63 x 25 x 139 (mm) Product weight 200 (g) Wall detection function ① Depth measurement 1. Magnetic metal: 8cm 2. Non-magnetic metal: 8cm 3. Live wire (AC): 5cm 4. Wood: 3.8cm ② Metal detection: The depth value is based on the p20mm standard steel pipe. For reference only (Note: The depth indication error is for reference only) ③ Non-metal detection:√ ④ Communication test:√ ⑤ Automatic shutdown: 5 minutes ⑥ Working temperature: 0°C50°C ⑦ Storage temperature: -10℃60℃ Package includes: 1 x Wall Detector Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.