Increased security for seniors living alone
can be obtained eaily by wearing one of those alert system like a necklace, armband, etc.
Hooks into your phone system, usually works as long as you're within a few hundred feet, possibly up to a quarter of a mile, from your phone.
If you have a spell, fall and break a bone, etc. push the button and your phone alerts a central office, the attendant can talk to you and you ask theat they call one of a list of friends wose numbers they have on file who've indicated that they'll come to help you.
Best if they have a key, forif you're inside a locked home, they may break a door or window to get to you, lacking such.
Sounds like a good idea, to me.
Costs about $30. to install and about $25. per month, around here.
Provides not only the subject, but loved ones with an increased measure of peace of mind.