The Nano Loco M5 is a two piece system. One at the far end, one at the near end. It uses encryption and is not really WiFi in the sense that you normally think of WiFi as. Surveillance cameras on "regular" WiFi, like a lot of the cheap consumer grade cameras, will overload a WiFi system very quickly. Cameras are not like watching a movie on WiFi. When you watch a movie buffering of the download comes into play. There is no buffering with surveillance cameras, they are a constant, real time, stream which can easily overload a normal WiFi system. I tried a WiFi camera early on in my surveillance system. It was about 100 feet from the router and it dropped out constantly even after installing "high gain" antennas on both ends. I have three cameras on a Nano Loco M5 link and they never drop other than if there's a power outage at the far end, no UPS out in the shed.
If you use a system like the Nano Loco M5 you can also plug in a regular network switch and have an instant connection, almost as good as a wired connection, back to you local LAN in the house. I wouldn't do that, myself, because I like to keep the cameras segregated from the internet for additional security. Cameras, no matter who makes them, are notorious for having many security holes that let them get used for DDOS attacks and as gateways to get into a local LAN to steal data.
Forgot to add the the Nano Loco M5 is weatherproof and suitable for outdoor use.
