WS-N605C: 1/4″SONY CCD，420TVL; Motion JPEG ; TCP/IP, DHCP, HTTP, UDP ； Ethernet 10/100M ;system: PAL 25F/S NTSC 30F/S;PAL:640x480,NTSC:320x240;S/N ≥48dB; Support 10 people to ^{visit at the same time. (without lens)}   

WS-N805C: 1/4″SONY CCD，420TVL;compression protocal: H.264 ;communication protocal: TCP/IP, DHCP, HTTP, UDP ；internet interface： Ethernet 10/100M ;output system: PAL 25F/S NTSC 30F/S ;resolution:704×576(D1)、  352×288（ CIF）;SNR ≥48dB ;inbuilt dynamic domain name cust

WS-N905C: 1/4″SONY CCD，420TVL;compression protocal: MPEG-4 ;communication protocal: TCP/IP, DHCP, HTTP, UDP ；internet interface： Ethernet 10/100M ;output system: PAL 25F/S NTSC 30F/S ;resolution:704×576(D1)、  352×288（ CIF）;SNR ≥48dB ;inbuilt dynamic domain name cust