ZK-D100S is a high performance portable metal detector, specially designed to body search for weapons in crowd control, airport and border security. Introduction Security detecting: Prevent taking contraband, such as: knife, gun and so on. Factory: Prevent the loss of valued objects. Education area: Prevent taking cheat-tool, such as: telephone, electronic dictionary, and so on. Features Portable metal detector, convenient to take. It can be recharged. It needs 4-6 hours for charging. (standard 9V battery ,the charger and rechargeable battery are ordered additional) The alarm terms is sound and light alarm simultaneously, or vibration and light alarm simultaneously. You can choose the operate terms optionally. When the low sensitivity on-off is pressed, the metal detector will only alarm when it finds big metal object Ni-MH Battery and DC charge cable (for option) HAND HELD METAL DETECTOR ZK-D100S