The high performance Security Metal Detector Hand Held Metal Detector is designed to meet the exact requirements of the security industry especially checkpoint. This hand held metal detector is tough design to meet police and security real time using, with low battery consumption. Typical applications will include body search for offensive weapons in crowd control, airport and border security, checking parcels and letters for metal objects and anywhere that hidden metal needs to be detected. SuperScanner operates on one 9V alkaline or rechargeable battery. Product Description: One switch operation Handle this unit in no time Ultimate sensitivity Does not require adjustments Rugged, high-impact ABS case with reinforced coil compartment Detects medium sized pistol from 9"; large knife from 6"; razor blade and box cutter from 3"; foil-wrapped drugs and tiny jewelry from 1" Large 10" scan surface for quick, thorough scanning Charger jack for 9V rechargeable battery recharge Sharp audible alarm and bright red LED light indicates the detection of metal Vibration function enable officers work silently Green LED light indicates on Amber LED indicates low battery Red LED indicates alarm The presence of metal will be indicated by an audio warning tone and a red light coming on. The sensitivity is adjustable. A 38 caliber hand gun will be detected at 7.75 inches on low sensitivity and 11 inches at optimum sensitivity A pen knife will be detected at 4 inches on low sensitivity and 6 inches on optimum sensitivity A razor blade will be detected at 2 inches on low sensitivity and 4 inches on optimum sensitivity Heavy duty construction, case is 50% thicker Easier switching between high or low sensitivity modes 20% larger scanning area than other design.Specification: 1、Detection sensitivity:Φ2.5mm stell ball 2、Power supply:9V fold battery（6F22ND） 3、Power consumption：270mW 4、Operation frequency:22KHz 5、Current：more than 50mA 6、Operation temperature：-5℃ to 55℃ 7、Net weight：409g 8、Dimension：410*85*45mm 9、Package size:580*330*460mm (25PCS/Carton,N.W:12.5KG,G.W.:13.5KG)2. SAV-900AB, Sample price is USD13.13/pcs, If order quantity is 100-500pcs, unit price is USD10.67/pcs.