Review on 📷 High Definition ZOSI 1080p Dome Security Cameras: Hybrid 4-in-1 HD-CVI/TVI/AHD/960H Analog CVBS, 2MP Day/Night Weatherproof Surveillance CCTV Camera for Outdoor/Indoor with Up to 80FT Night Vision by Jesus Olsen

ZOSI DVR is ok, its backup function works with USB stick but not USB stick or USB hard drive. If you are familiar with DOS, you should also be familiar with the user interface. Since his cameras are analog TVI, they also work well with my Lorex DVR. The images circled in orange were captured by ZOSI cameras, while the remaining images were captured by Lorex cameras. In daylight mode they are all sensitive and able to produce decent image quality; However, as for the night vision model, only one ZOSI camera ($20 each) can produce a high-quality image, like Lorex camera ($80), the other two cannot provide sharp details of objects. ZOSI can have different providers, so ZOSI has to filter out the bad one.