4CH DVR Feature. SV 4Channel 6MP All-in-1 DVR. Playback Channels1/4. Main ProcessorEmbedded Processor. Alarm Relay OutputN/A. High Performance and Outstanding Quality. 1/3" Sony CMOS, Vari-Focal 2.8-~12mm Varifocal Lens, 1800 TVL Lines 72PCs IR LED, IR 196.85 feet.
