... H.264 4CH High economical standalone DVR video recorder Features:1. Video input/Output: 4CH BNC/1CH BNC ... safety and clean.Our productsCamera, IP Camera, DVR, mobile DVR, security kit, DVR card, Wireless surveillance systerm, LCD ... Security CCTV camera, Security Network IP camera, wireless Security system camera, DVR card recorder,standalone DVR recorder, Mobile DVR recorder, CCTV camera lens, etc ...