Metal Detector Type | Hand |
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This Hand-held metal detector’s sensitivity detects medium sized pistol from 9" distance; large knife from 6"; razor blades and box cutters from 3" distance; foil-wrapped drugs and tiny jewelry from 1". * This scanner has a large 8" scan surface for quick, thorough scanning. * It is Self-calibrating; the digital microprocessor technology eliminates the need for periodic sensitivity adjustments.