juan juan | Multifunction Metal Detector With Audible Alarm Wall Scanner Large Area Sensor For Metal Nonmetal AC Wire Stud Wood Finder

Features1. 100% brand new high-quality products.2. Made from high-quality materials, it is durable and practical.3. Suitable for use in indoor decoration structures, it can detect the positions of metal and wood within walls. When sensing metal or wood, the device flashes and beeps as an alert. It can also detect other foreign objects within the same structure.4. Ergonomic design for comfortable use.5. Locate the edges of wooden or metal rivets, with a depth of up to 3/4 inch (20 mm).Testing Sampling:Place the instrument on the surface to be measured, then press the power switch. At this point, the first red and green indicator lights will illuminate, accompanied by a "beep" sound. Subsequently, the red indicator light will turn off, indicating successful operation. During sampling, if the first red indicator light remains constantly lit and emits a brief "beep" sound, it indicates unsuccessful sampling, interference, or that the measured object exceeds the built-in allowable valueTest operation:After successful sampling, do not release the power switch. Move along the surface being tested. When the instrument detects an object, the red indicator lights will illuminate in sequence. When all LEDs are fully lit and a "beep" sound is emitted, mark the spot with a pencil, then release the power switchPlace the instrument on the surface and sample in the opposite direction, moving toward the marked position. When the instrument detects an object, the red indicator lights will sequentially illuminate. When all LEDs light up and a "beep" sound is emitted, mark the spot with a pencil and release the power switchTest several times repeatedly. If alarms are triggered each time, there may be support columns (foreign objects) beneath the intermediate areaWhen there are no metal objects or other foreign substances beneath, it will not flash or emit sound. To ensure accurate test results, multiple tests can be conductedParameters:Power supply: 9V 6F22 battery (not included with this product)Product dimensions: 145x62x25mmProduct weight: approximately 71g (without battery)This instrument is designed based on the principle that changes in the density of materials beneath the surface of the object being detected cause alterations in the detector's frequency. The maximum detection depth is 19mm beneath a uniform surface, with a detection range error of 3mm. The area of the object being detected must not be less than 1200mm²Package List:Naked watch (no battery inside) *1Instruction manual *1Carton packaging *1