This is a sample of CCTV system, Complete CCTV equipment. It including CCTV camera+CCTV DVR+Video/Power Cable+500G/1000G HDD+Camera power+alarm(optional)+Acoustic pickup(optional), You can freely Portfolio CCTV Systems by your Solutions Program .Our Company can offer types comprehensive of surveillance products for you choose.Example: DVR:1CH/4CH/6CH/8CH/9CH/12CH/16CH/24CH/36CH,Compression Format: MPEG4/H.264 ; Video System :NTSC/PAL. With VGA and USB ; Camera :IR camera, zoom camera ,explosion-proof camera ,waterproof camera ,dome Camera,420Lines camera, HD 480TV/520TV/540TV/600TV Lines camera, with (1/3 or 1/4) SONY/SHARP CCD chip,Signal System : NTSC/PAL . We will follow your request to assemble and debug CCTV system. Our company all sell Home Video Intercom system, GPS,Intercom, Alarm, Video Capture car, CCTV tester.Welcome to our company to choose you want , if you have any question please e-mail us or through MSN .