... , support SDHC cardOptional ModelEC-IP4404IR 2.1 Megapixel IP IR camera ModelEC-IP4404Type1080P 2.1 Megapixel HD IP vandal proof Dome ... ATW,AGC,BLCAuto Electronic Shutter1/25 -1/10000sec , Slow shutter 1/2,1/4,1/8,1/12Optical lens2.8-12mm manual varifocal ... RJ-45 connectorI/O Interface1-ch input, Normally Open/Normally Close modes adjustable; 1-ch output,1 RS232 interfaceVideo CompressionH.264 ...