The main difficulty of field monitoring lies in power supply and network transmission. A set of solar energy system (including storage battery, solar panel, solar bracket, supporting surveillance camera or surveillance dome); 4G mobile phone (traffic card) for transmission, TF memory card for storing video, Fuvision specializes in making this product, You can contact us for consultation, I hope you find a good product suitable for your use Surveillance Camera System

Versatile Local PoE NVR Video Storage Outdoor Waterproof NVR Set
The NVR that came with the Reolink 5MP PoE system was the Wireless Security Camera NVR, and it`s a pretty flexible NVR. For starters, it had a built-in three TB hard drive pre-installed, which was more than enough to store several days worth of videos from the eight included cameras. However, it also had two more available hard drive slots, each capable of supporting a SATA drive up to four TB. We had one lying around and we used it to expand the storage to seven TB. That`s a couple of weeks worth of video storage for us. Another great thing about the NVR was that it supported up to 16 cameras, perfect for large homes or businesses. That many cameras would have been overkill for our mid-sized apartment, but it was good to know that we could add more cameras if needed.