Go to OSX Daily to read Check for Power Outage with iPhone, Mac, or iPad, by Looking for Wi-Fi
Electrical power outages are not particularly fun, but should you have the experience of encountering one, you may find this tip helpful which aims to determine if a power outage is impacting only your specific location or if it is neighborhood wide. All that you need is any battery powered device with wi-fi, meaning any iPhone, iPad, iPod touch, MacBook, or Mac or PC laptop can be used to learn a bit more about a power outage.
How to Check for Power Outages Using an iPhone, Mac, or iPad
This trick only works in a suburban, urban, neighborhood, or city…
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