This system was designed for high performance, easy installation and easy use. The DVR can be connected to a standard security monitor to view live or recorded data or can be connected to a standard computer monitor through a VGA output. The 4 color cameras included are high resolution, which allows you to clearly view and record activity. This unit has a built-in 500GB hard drive that includes a built-in DVD burner which allows you to archive larger images. The DVR will provide reliable recording and playback of your recorded footage. You can conveniently set your DVR to record by an alarm sensor, motion detection or at specific times. This stand-alone DVR can record the video signals from 4 cameras to the built-in HDD and replay them at real time or at 1~64x speeds. This system has numerous monitoring features such as automatic sequential display, full screen display for a selected input video signal, pausing, 2x digital zooming, quad splitting, etc. Additionally, real time monitoring, replaying and buzzer/light alarming are possible via network (TCP/IP). The 4 cameras included are high resolution color cameras to give you clear and sharp color images. See beyond the 4 walls, where the birds and cats play. View your children in the back yard to possible intruders. Add this camera to your compatible closed-circuit home TV security system. Camera will function under most weather conditions. It uses invisible Infrared lighting to view objects in the dark. The sun visor installed reduces glare during daylight hours.