Handheld Wall Scanner Detect Metal and Electrical Wiring Behind Walls [Product Advantages] This handheld wall scanner is ideal for use in indoor construction and decoration projects. It can effectively detect the location of metal objects and electrical wiring within walls. When it senses metal or voltage, the device emits both flashing lights and sound alerts to help ensure safety and accuracy during installations or repairs. [Metal Detection Capabilities] Metal Detection: The scanner is capable of detecting metal objects such as steel pipes with a diameter of up to 15mm, at a detection depth of 24mm (reference value). Voltage Detection: It can also detect electrical wires with AC voltage of 100V or higher, up to a depth of 30mm, making it a versatile tool for safely locating both metal and electrical components inside walls. [Easy-to-Use Features] User-Friendly Operation: To use, turn the power switch off, adjust the function switch to position for metal detection, and slowly turn the knob to the point where the device is silent and does not flash. Metal Detection Mode: Move the scanners detection zone (////DETECT) parallel to the surface of the material being scanned. The device will alert you with flashing lights and sound when it detects metal objects or electrical circuits. It will remain silent when no metal is detected. Voltage Detection Mode: To detect voltage, switch the function to and move the detection zone (////DETECT) left and right across the area. When an electrical circuit is detected, the scanner will flash and beep. If no voltage is found, it will remain silent. [Important Notes] The scanner should not be used to detect electrical voltage inside metal pipes, metal walls, or deep components. After testing, always turn off the power to the device for safety. [Product Specifications] Power Supply: Requires one 6F22 9V battery (not included) Product Size: 148mm x 78mm x 24mm Weight: Approximately 117g (without battery) This handheld wall scanner is a must-have tool for anyone working with walls, electrical systems, or metal structures, offering efficient detection and safety during construction and renovation projects.