Lorex"s L15LD424251 Professional Surveillance System is packed with features and is a perfect fit for small business or home applications. The 15" high resolution LCD panel has an integrated 250GB H.264 Triplex DVR which allows you to view or playback while recording continues. The 4 included color weatherproof surveillance cameras feature heavy duty design and 40 ft. of Night Vision for viewing in ZERO light. Remote viewing software with Lorex FREE DDNS service allows you to connect to the system from anywhere in the world via the internet.