Zmodo 16 Channel 960H DVR CCTV System w/ 4 Outdoor + 4 Indoor 600TVL Surveillance Cameras System with 1TB HDD 600TVL Hi-Resolution Camera Recording at 960H (960x480 pixels), HDMI port for high definition display Instand email alert with photo if activity detected When everyone else is asleep, our cameras are watching closely The metal housing is designed for indoors & outdoors use