Metal Detector Advanced remote positioning & precise detection, better than traditional detectors. High sensitivity & stable performance, smart modular design for fast detection. Built-in microcomputer chip, auto self-check, easy operation & high efficiency. Multi-purpose, detect gold, silver, copper, stone and more. Widely used for security check, survey, recycling, archaeology etc. Item Type: Metal DetectorMaterial: AluminumWeight: 1187g/41.87ozMax Range: 1200mMax Depth: 30mFrequency: 5.6-6KHz / 360-440HzPower: 9V Battery (Not Included) SizeMain: 32.5×16.5cmTransmitter: 11.3×7.5×3.5cm Operation Tips Turn on host & sensor, set target, adjust depth & range to detect. It swings left-right when finding targets, stronger swing for larger metals. Use in interference-free open area, turn on both host and transmitter to work. Package Contents1Detector Host,1Transmitter,6Extension Rod,1English Manual