ShenZhen LongYang Data Control Technology Co.,Ltd is a professional and high-tech enterprise which specialise in the CCTV field .Our company major products completely enjoy the knowledge Property Right and possess many patents. We manufacture a whole series high speed dome camera from 3.5" to 6", Integrative auto-focus camera, intelligent low speed dome, keyboard controller, alarm box, receiver, converter and peripheral accessory which already have CE��CC and RoHS