This MD-3003B1 Hand held Metal Detector is designed to safeguard security-sensitive areas like schools, courtrooms, sports events, night club. It is a powerful easy-grip, hand-held, security screener. With it's 360 degree scanning provides uniform sensitivity along the scan area including tip pinpointing. Choice of audible or silent Vibrate / LED Alarm, for less conspicuous detecting. It can be used by security personnel and law enforcement agents numerous times daily, all over the world.