When the grid goes down, and mobile phone linked trail cameras no longer work, getting a wifi setup with some good range can help you secure a location. Wifi can get upto a mile in ideal conditions and good antena’s. these TTGo cameras are hackable and can be changed and customised to do exactly what you want. they can even do facial recognition if they are internet tied, but there is no need to use them in the way ,they have Passive infrared motion sensors built in and can be setup to use very little power.
get these and use them for security of a location – using them as trail cameras using wifi and alarms for your location . work really well with solar power and can be modded