Buy on Amazon : br br Defender Sentinel 8CH 500GB Smart Security DVR Including 4 Hi-Res IndoorOutdoor Cameras with br br Record over 2 years worth of footage on the included 500 GB hard drive br High-resolution cameras provide crisp and detailed video br Monitor up to 75 feet away in complete darkness with automatic night vision br Easily connect to DVR with 65-foot cables to allow greater flexibility in camera situating