Beijing Dongcheng District monitoring installation, monitoring project, Dongcheng District, Dongcheng monitoring Hikvision level distributors, security monitoring areas of the company for 10 years, following the size of security monitoring project, Hikvision surveillance products distributor, DS-2AF7230SI series 2 million pixel IR digital high-definition high-speed smart ball machine movement Features:? 30x optical zoom, 16x digital zoom with auto iris, auto focus, auto white balance, backlight compensation support ultra low illumination, 0.02Lux / F1.6 (color?? ), 0.002Lux / F1.6 (black and white), 0 Lux with IR? support wide dynamic function? Support HSBLC? support polygonal privacy masking, multi-zone can be set, multi-colored, mosaic optional