... and vibrate. 3.Charger optional 4.High sensitive MD-3003B1 Rechargeable Super Hand Held Scanner Detailed Product Description Hand Held ... , sports events, night club Product Description & Features: The MD-3003B1 Hand Held Scanner (explosive detector) is a powerful easy-grip ... Vibrate / LED Alarm, for less conspicuous detecting. The MD-3003B1 Hand Held Scanner is used by security personnel and law ...