Garrett Super Scanner Hand-Held Metal Detector is a rugged, compact hand-held metal detector that has ultimate sensitivity for detecting medium-sized pistols, large knives, razor blades, box cutters and foil wrapped drugs from a legitimate close distance. The Garrett Tactical Hand-Held Super Scanner gives out a sharp audible alarm and bright LED giving officers the tactical advantage while scanning and retrieving metallic items. The Garrett Metal Detector also has a self-calibrating digital microprocessor technology, which eliminates the need for periodic sensitivity adjustments.