A door camera is a simple idea with a hidden test. It can show you who is standing outside, but what matters is what happens next: who is told, how fast, and whether she can respond on her own terms. Judge the product by that chain, not by the picture quality on the box.
Local option: New Plan Care gives families in the St. Louis area in-home help so a parent can stay home: companionship, help with bathing and dressing, meals, and overnight care. Call (314) 405-0887.
Start with her, not the feature list
Sit where she usually sits and imagine the doorbell ringing at an ordinary hour. Can she hear the chime clearly from her chair or bed? Can she reach a speaker or button without getting up? If she uses a walker or has trouble standing, the answer she can give from her seat matters more than any extra feature. Ask her, in plain words, whether she wants to be seen by a camera at all, since her comfort is part of the requirement.
Check who gets the alert
Ask the company how alerts reach phones, and how many phones can receive them at once. Find out whether you can add more than one family member, whether quiet hours can be set, and whether the alert still arrives when a phone is on silent. Decide who responds to a late-night ring and who does not. A product that sends alerts to one person who is asleep or at work has not solved the problem.
Test the night view and the reach
Ask how the camera handles darkness and whether the porch light is needed for a usable picture. Check whether the view covers the whole step and the path, or only the door itself. A camera that cannot show a person's feet on the step will not tell you whether they are steady, and it cannot show a fall that happens just out of frame.
Ask what happens when things fail
Ask what the camera does when the internet drops or the power goes out. Find out whether it stores footage, for how long, and where. Ask whether a battery needs regular replacement, and who will remember to change it. Write down the answers, because a product that works only when the network is strong is not the same as one that works on the worst night.
Set the privacy rules before the first ring
Decide who may view the footage, who may speak through the speaker, and whether visitors and helpers are told they are being recorded. Make sure she agrees to where the lens points and what it can see inside the house. Keep the rules in writing so that the next person who helps in the house knows what the camera is for. If you are still unsure which setup fits her home, the start here guide shows the order in which these decisions usually make sense.