... Metal Detector MD-3003B1 1) High quality 2) 409g each net weight 3) Present 1pc 9V battery for each MD-3003B1 Handheld Metal ... alarming or cancel vibration function, earphone isoptional.2. With high sensitivity, can detect Ferrous and non-Ferrous metals.3. ... security inspection equipment to increase safe efficiency, such as walkthrough metal detector.-Can detect various metals, such as: Copper, Ferrous ...