You are probably looking at this late at night, with a product page open and a question you cannot answer yet: will this thing actually get help to my parent if they fall in the bathroom at six in the morning? That is the right question. Most of the differences between personal alert systems come down to a few details that marketing pages bury. Here is what to check, roughly in the order you should check it.
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 where your parent actually falls
Walk through the house in your head, or better, ask your parent or a local helper to walk it with you. Note the bathroom, the bedroom farthest from the phone, the back steps, and the spot by the garage door. A button only works inside its range, so the question is not whether the device has a range but whether that range covers the places where trouble tends to happen. Ask the seller for the stated range and whether it is measured through walls or in open air. Then ask what happens if your parent is out in the yard or at the mailbox.
Check how it is worn, because the wearing decides the use
A device that hangs on a cord around the neck is only useful if your parent will put it on every morning and take it off only for the shower. A wrist unit is a different habit. A clip-on or a version kept in a pocket is easier to forget. Ask your parent which one they would actually wear, not which one they would agree to. Ask whether it is safe to wear in the shower, and whether it has to come off to charge.
Find out who gets the call
This is the part most people skip, and it matters most at 2 a.m. Some systems send the alert to a monitoring center that is staffed around the clock, which then calls your parent and then calls the people on the contact list. Some dial a set of phone numbers in order. Some send a message to a phone app. Ask, in writing, what happens step by step after a press, how long each step waits before moving on, and what happens if nobody picks up. Ask who is on the contact list and whether you can change it from far away. Ask how the contacts are told the device is active and what they are expected to do when the alert arrives.
Ask what the fall feature does and what it does not
Many devices advertise automatic fall detection. Treat that claim as a question, not a promise. Ask what the device is designed to detect, how it was tested, and whether the company will put those answers in writing. Ask how it handles a fall where your parent is awake and simply cannot get up, and how it handles movements that are not falls at all. A detector can miss a fall or sound an alert when nothing happened, and a straight answer from the seller will cover both. Do not let the feature replace the button. Your parent should still be able to press it themselves.
Check the power and the phone line
Find out whether the base needs a landline, a working internet connection, or a cellular signal, and what happens during a power outage. Some bases run on battery for a while, and some stop completely. Ask who will know when the battery is low and how the device signals it. A system that stops working without any warning is one you should understand before you commit to it.
Read the contract for the exit, not just the start
Read the length of the agreement, how it renews, how cancellation works, whether there is a charge for returning the equipment, and who owns the device. Ask what happens if your parent moves to a different home or needs a different device later. Get the cancellation steps in writing before you sign. If the terms are hard to find or hard to follow, that tells you something about the company.
Test it before you trust it
A device has only been tested once someone has actually pressed it. Plan a test early. Have your parent press the button from the farthest room, have a local person confirm the call arrives, and have a contact answer. Repeat the test after a battery change and after the base is moved. Keep a short written note of each result so the next test has something to compare against. If you need someone in St. Louis to do the test walk, the Local Help for a St. Louis Parent page explains how to set that up.
What to do tonight
Write down the three places in the house where your parent is most often alone and most at risk of a fall. Then go through the questions above and send them to the seller, or read them aloud to a helper who can call. Ask for every answer in writing. Do not buy anything tonight.
What to leave with the doctor
Bring the question of whether your parent's balance, strength, or memory make a wearable button a good fit, and whether there have been any falls or near falls worth recording. Ask whether a referral for therapy or equipment would change which device makes sense. Ask who on the care team should know the device is being installed. The doctor decides what is medically needed, and you decide which device suits the house and your parent's daily habits.