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7 Color , SD card starting from 2GB memory and capable of using 16 GB of SD RAM or more, DVR video door phone intercoms with USB port to transfer Videos to PC. Illumination 0.02 Lux or less. Resolution 960X240 or more.Input power supply 120 V for Canada.(I reserve the right to make modifications to technical specification and price.) video door phone, memory dvr, door surveillance Electronic, Computers, Security