PX-004 Hand Held Metal Detector Operates on rechargeable and disposable dry battery, in-built battery charger, is a rugged, light weight detector designed to detect hidden metal objects, on a person. It has an ultra-high sensitivity and is capable of detecting metal as low as 1 gm. With improved circuit design, and round coil- head, it is specifically designed to frisk the human body in one fluent motion for weapons.