Professional 4 Channel H.264 DVR with 2 x 1/3" SONY CCD Cameras, 600 TV Line, 3.6mm lens, 48pcs IR LED, 131 ft IR Distance, Wide Dynamic Range. iPhone Viewing, Central Management System (CMS), Real Time Recording, Motion Detection Recording Function with Sensitivity Adjustment, USB Backup, VGA Monitor, PTZ Control. GW612WD: Professional Waterproof Outdoor Camera, 1/3" SONY CCD, 600 TV lines, 3.6mm lens, 48pcs IR LED, 131 ft IR Distance. WDR(Wide Dynamic Range). OSD Menu. Low Illumination 0 Lux (with IR LED on). Great Image, Great for Entrance.
Other Thoughts:It also has a 2 way intercom mode between a camera and the LCD display. It's convenient to run the cameras and/or display from portable power as the display is powered from 5V and the cameras from 9V.
Other Thoughts:This wireless camera system includes a 7" LCD monitor and 2 cameras with sound pickup (expandable to 4 cameras). It transmits over 2.4 GHz and the transmission is digital over a reliable data channel so it doesn't suffer from the interference problems common with analog transmitters.