The Lorex Four Channel Digital Video Recorder DVR L154-81 is a reliable surveillance monitor/display unit designed for indoor use. With a storage capacity of 80GB, this DVR allows you to securely store footage from up to 4 cameras in 4 different zones. The digital technology ensures clear and reliable video feed, making it an essential component for home surveillance systems. Easy to set up with a wall plug-in power source, this Lorex model offers peace of mind and security for your home.