Handheld Metal Detector MD-3003 Handheld Metal Detector MD-3003FEATURES1. Adopt sound alarming function, earphone is optional.2. With ... security inspection equipment to increase safe efficiency, such as walkthrough metal detector.6. Can detect various metals, such as: Copper, Ferrous and ... (W)x32mm(H)PackingColor carton boxStandard outer packing volume25pcs Handheld Metal Detector MD-3003