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gold and metal Detector SPARK 2018 The Spark device works on the long distance sensing system (LDS), the advanced and built-in with acoustic identification systems to locate the path and point center of target. The Spark offers the high rigor frequency waves that enable it to identify and detect the target sites underground, like a gold, treasures and blanks meticulously where the device can locate the targets from 200 meters distance and an angle of 360 degrees with prejudice control feature at A horizont
